Umbo definition zoology biology Under the hemispherical or conical umbo was a crosspiece by which the shield was held. Start studying mussel external anatomy. In the modern world, they are the smallest known world that performs all of life's functions. Circulatory System 10. noun mycology A bump or protrusion on the top of the cap. Respiratory System 13. Study with Quizlet and memorize flashcards containing terms like Class Bivalvia, Umbo (Bivalves), Giant clam (Tridacna gigas) and more. Body Cavity 7. May 8, 2018 · umbo (pl. The oldest part of the shell, the umbo, can be recognized as a large hump on the anterior end of the dorsal side of each shell. Historical Retrospect of Trochophore Larva: 1. Umbo definition: The boss or knob at the center of a shield. Define umbo. edu Taxonomy Branch of biology that classifies, identifies and names organisms Defines groups of organisms with shared characteristics Concha solida, subtriangular, umbo cerca del extremo posterior con pico opistogirado, borde anterodorsal suavemente arqueado con extremo redondeado, extremo posterior anguloso y borde ventral arqueado; charnela taxodonta, con 20 dientes anteriores y 10 posteriores, el condroforo es oblicuo y profundo; color externo blanquecino con periostraco Umbo of tympanic membrane synonyms, Umbo of tympanic membrane pronunciation, Umbo of tympanic membrane translation, English dictionary definition of Umbo of tympanic membrane. Learn how 'umbo' is applied in various contexts, along with related terms, synonyms, and usage examples. , editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. Synonymes et antonymes de umbo et traductions de umbo dans 25 langues. Explore quizzes and practice tests created by teachers and students or create one from your course material. ADVERTISEMENTS: In this article we will discuss about Trochophore Larva:- 1. The umbo is the most depressed part of the tympanic membrane. As nouns the difference between umbo and beak is that umbo is (biology) a boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the of echinoderms or in the tympanic membrane of the ear while beak is (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the of echinoderms or in the tympanic membrane of the ear. Only 10 percent of the originally fertilized eggs survive to this stage. Excretory System 10. thick muscle that attaches the two valves of a mollusk and causes the shell to open and close Carinate definition: . Study with Quizlet and memorize flashcards containing terms like molcusca is ____ animal phyla -the largest - one of the largest - one of the smallest - the smallest, the ______ is a rasping, protrusible, tongue like organ that is found in almost all mollusks except bivalves, in mollusks the male creates a space between itself and the visceral mass which houses the _____ organs and more. This is the broad zoology definition. Dec 8, 2016 · Ecology Definition. Biology A knoblike protuberance arising from a surface, as the prominence UMBO meaning: 1. Digestive System 8. 3); in 8 days, approximately 195 x 175 txm; in 10 days, many reach the late umbo stage, approximately 215 x 190 Ixm, and a protective shell. um·bo·nes or um·bos 1. This biology dictionary is here to help you learn about all sorts of biology terms, principles, and life forms. It can be broken down into numerous sub-disciplines: ornithology (the study of birds), primatology (the study of primates), ichthyology (the study of fish), and entomology (the study of insects), to name a few. (mycology) A bump or protrusion on the top of the cap. Nervous System 14. beak sculpture (noun) The coelom is a body cavity found in many animals that provides structural support and protection for internal organs. This space contains the mollusk's gills, anus, osphradium, nephridiopores, and gonopores. Înțelesul umbo în dicționarul Engleză cu exemple de întrebuințare. ADVERTISEMENTS: 3. Umbo is a term used in biology to refer to a rounded elevation WordSense Dictionary: umbos - meaning, definition. Receptors and Sense Organs in Lamellidens 15. What do the rings on the clam's shell indicate? They indicate how old the clam is; the more rings the older the clam. umbones or umbos or umboes) (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane… (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the of echinoderms or in the tympanic membrane of the ear. During meta-morphosis, the clam “seed” bur-rows into a suitable substrate where it remains mostly immobile. Number and Size 7. Valve : Each shell of the bivalve mollusc. Bivalve - a laterally compressed mollusk with 2 valves (2 "half-shells"). umbo synonyms, umbo pronunciation, umbo translation, English dictionary definition of umbo. and the umbo. Jun 18, 2019 · One of the biggest difficulties in fisheries research and management is that it is challenging to directly observe fish over the entire course of their life cycle. The freshwater mussel Mytilopsis leucophaeata showing the incurrent and excurrent siphons. Internal Structures 4. The meaning of UMBO is the boss of a shield. It was developed by the Swedish botanist Carolus Linnaeus, who lived during the 18 th Century, and his system of classification is still used today. The beak is the oldest portion of a mussel shell, formed when the animal was very young. and a foot for locomotion Define umbonic. Due to coarseness of the nacres, sometimes the oyster produces the inferior quality of pearls but in the seas of Polynesia and Micronesia the pearl oyster produces large and good quality of pearls. Taxonomy Branch of biology that names and identifies organisms Science of defining groups of biological organisms with shared characteristics and evolutionary Explore the wonders of biology. Ovate, campanulate or conical and flattening as it matures often with a distinct umbo but sometimes it is absent. Of the two valves […] ADVERTISEMENTS: In this article we will discuss about Unio:- 1. Whorl : One complete ( 360° ) coil of a shell Mar 7, 2025 · Zoology, branch of biology that studies the members of the animal kingdom and animal life in general. External Features of Unio 3. Learn how this science shapes our understanding of life. pl. Ecology is the branch of biology that studies how organisms interact with their environment and other organisms. Access easy-to-understand explanations and practical examples on key biology topics, from cells to ecosystems. Biology A knoblike protuberance arising from a surface, as the The mantle cavity is a central feature of molluscan biology. . The shell is dirty mushroom becom­ing greenish towards umbo with several white radial lines. Biology A knoblike protuberance arising from a surface, as the prominence Mar 14, 2025 · Biology, study of living things and their vital processes that deals with all the physicochemical aspects of life. Definition of umbo in English Dictionary; 명사 (Noun) PL umbones PL umbos PL umboes +- A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear. Phylogenetic Significance. Zoology is a branch of biology Umbo of tympanic membrane synonyms, Umbo of tympanic membrane pronunciation, Umbo of tympanic membrane translation, English dictionary definition of Umbo of tympanic membrane. Muscles 5. All living organisms are either single cells, or are multicellular organisms composed of many cells working together. Beak Sculpture - (see also: Concentric scuplture) - shape and arrangement of contours inherent to umbo; formed by early growth geometry. Rising above the hinge line on each valve is a swelling called the umbo, the oldest part of the shell. Definitions from Wiktionary (umbo) noun: (historical) The boss of a shield, at or near the middle and usually projecting, sometimes in a sharp spike. the umbo. The word zoology comes from the Greek words zōion, meaning “animal”, and logos, meaning “the study of”. The apex of a valve of a bivalve is more usually known as the umbo or beak. Mantle and Mantle Cavity 8. This cavity is formed by the mantle skirt, a double fold of mantle which encloses a water space. (zoology) One of the lateral prominence just above the hinge of a bivalve shell. Noun. noun zoology One of the lateral prominence just above the hinge of a bivalve shell. During metamor-phosis, the clam “seed” selects a suitable substrate, where it bur-rows at varying Study with Quizlet and memorize flashcards containing terms like What symmetry do mollusks have?, What is the visceral mass?, What is the mantle tissue? and more. Entries where "umbos" occurs: umbo: see also ụm bò‎ umbo (English) Origin & history Borrowed from Latin umbo Pronunciation Rhymes: -ʌmbəʊ Noun umbo (pl. Characteristic Features 5. See examples of MUCRO used in a sentence. Zoology covers animal behaviors, psychology and how animals interact with various other species in the environment. Umbo : Beak of a bivalve shell, from where generally the growth of the shell would have started. In Brachiopoda and Bivalvia, the first part of the shell to be formed; it occurs at the posterior of each valve in brachiopods and forms the dorsal part of the shell in bivalves. Contents: […] Apr 28, 2017 · Taxonomy Definition. g. One of the most useful tools scientists use to study fish are otoliths. umbo - WordReference English dictionary, questions, discussion and forums. 2b); in 6 days, an early umbo approximately 150 x 140 Ixm (Fig. Every organism experiences complex relationships with other organisms of its species, and organisms of different species. Leucocoprinus armeniacoflavus - Wikipedia. n. With the extra weight of the shell, larvae no longer swim freely and settle to the bottom. the iron central boss of a shield, which protected the warrior’s hand. It features a convex cap measuring across, with a small umbo. “ umbo ”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers “ umbo ”, in William Smith et al. A field of biology known as zoology is dedicated to studying the animals and its inhabitants. net dictionary. This cavity allows for the organs to be suspended and protected within a fluid-filled space, reducing the risk of damage from external forces. is that shield is a broad piece of defensive armor, carried on the arm, formerly in general use in war, for the protection of the body while umbo is (biology) a boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the of echinoderms or in the tympanic membrane of the ear. Signification de umbo dans le dictionnaire anglais avec exemples d'utilisation. Nervous System 11. noun: (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane. The umbo (plural umbones or umbos) is the vaguely defined, often most prominent, highest part of each valve of the shell of a bivalve or univalve mollusc. Jan 1, 2001 · In about 40 h, many veligers reach an approximate size of 110 Ixm long and 90 txm high; in 4 days, approximately 120 x 98 ~tm, still a straight hinge (Fig. It encompasses all aspects of scientific knowledge about animals, like embryonic development, evolution, behavior, ecological The lines of growth start from an elevation— the umbo which is the thickest and the oldest part of the shell. Define umbo membrana tympanae. ). Varices show different patterns. Umbo (bivalve), part of a bivalve shell which was formed when the animal was a juvenile; Umbo (conifer cone), the first year's growth of a seed scale on a conifer cone, showing up as a protuberance at the end of the two-year-old scale; Umbo (mycology), at the top of some mushrooms Other articles where umbo is discussed: human ear: Transmission of sound by air conduction: …waves, its central portion, the umbo, vibrates as a stiff cone, bending inward and outward. 1 (context biology English) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear. zoology. May 21, 2022 · (pl. (Biology) a rounded knob or protuberance (Zoology) the highest point of each valve of a bivalve shell Examples The new species is characterized by a transversely extended, strongly biconvex to globular shell with prominent umbones, relatively numerous costae and a notothyrial cavity supported dorsally by a short median ridge. 3 (context mycology English) A bump or protrusion on the top of the cap mollusc class characterized by bilateral body symmetry, a prominent head, and a modification of the mollusk foot, a muscular hydrostat, into the form of arms or tentacles. The umbo is the rounded area of the shell just above the hinge. Classification 6. Biology and Metamorphosis 4. Apr 28, 2017 · Zoology Definition. Development 15. Habit and Habitat of Phylum Mollusca 3. Since the shell provides extra weight, they no longer swim freely and settle to the bottom. Excretory System 12. ¹. Inside the shell, the animal has a simple head without eyes or radula (the rasping, ribbon-like tongue used for feeding in other mollusc groups). In Brachiopoda and Bivalvia , the first part of the shell to be formed; it occurs at the posterior of each valve in brachiopods and forms the dorsal part of the shell in bivalves. Loven (1840), a Swedish naturalist, was the first man who discovered trochophore larva. It is much easier to count sheep in a pasture than it is to count fish underwater. Zoology, or animal biology, is the field of biology that involves the study of animals. Apr 18, 2025 · "umbo" published on by null. a visceral mass (located unger gills) that houses the major internal organs (including gonads and intestines). It usually contains the valve's beak , the oldest point of the valve, and its degree of prominence and position relative to the hinge line are sometimes helpful in distinguishing bivalve taxa Jan 26, 2001 · A bivalve is characterized by possessing two shells secreted by a mantle that extends in a sheet on either side of the body. Affinities 6. Learn biology a slight rounded elevation where the malleus attaches to the eardrum Quiz yourself with questions and answers for Biology 122: Zoology Review for exam three, so you can be ready for test day. Only 10 percent of fertilized eggs survive to this stage. What does umbo mean? umbo. The diameter of the shell is about 15 cm. Dec 18, 2016 · Biology is the study of living things. Learn at your own pace with bite-sized, verified content. Two large oval impressions of the ante­rior and posterior adductor muscles are present near the anterior and posterior ends of the shell respectively (Fig Definition of zoology in the Definitions. Taxonomic Retrospect 4. Contents: Definition of Molluscs Habit and Habitat of […] (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear. It can also be referred to as animal biology. 5-3. Dec 18, 2016 · This is a list of all biology terms we have at this moment. Coelom 5. One of the lateral prominence just above the hinge of a bivalve Jan 1, 2016 · Molluscs are present in most Nearctic freshwater habitats other than hypersaline lakes, which are colonized by only a few snail species (Assiminea spp. Reproductive System 10. Meaning of umbo in the Portuguese dictionary with examples of use. ADVERTISEMENTS: In this article we will discuss about the structure of Pearl Oyster (Ostrea) with the help of a diagram. Sense Organs 12. Heart and Pericardium 11. Zoology the beak of a bivalve shell; 'umbo' also found in these entries UMBO meaning: 1. Apr 27, 2017 · Cells are the basic unit of life. The hinge teeth, or the lack thereof, is an important feature in identifying bivalves because the teeth are generally similar within the major taxonomic groups. 2. Paired valves of the bivalve Abra alba. a mantle which may secrete the shell . It is broken down into many fields, reflecting the complexity of life from the atoms and molecules of biochemistry to the interactions of millions of organisms in ecology. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Development. a. Reproductive System 16 «Umbo» Meaning of umbo in the English dictionary with examples of use. the raised portion of the dorsal margin of a shell, also called the umbo. Otoliths (Greek for ear-stone) are calcium carbonate structures found beneath . Synonyms for umbo and translation of umbo to 25 languages. 5cm wide and campanulate (bell shaped) when mature with a pronounced umbo. Meaning of umbo. Excretory System 9. Leucocoprinus tricolor - Wikipedia Dictionary entries. Microscopic Structure 4. Umbo is the meaning to the meaningless, and the definition to itself. umbones or umbos or umboes) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane. amherst. Structures of the Trochophore Larva 3. Locomotion 6. beak cavity (noun) the depression or cavity on the inside of each valve beneath the beak. It is convex, later flat, and with a raised central boss umbo . umbones)A convex protuberance or swelling in the centre. ADVERTISEMENTS: In this article we will discuss about Phylum Mollusca:- 1. G. Metamorphosis. See examples of UMBO used in a sentence. Each one of these two parts is known as a "valve". www. Description of Lamellidens 2. 2 (context zoology English) One of the lateral prominence just above the hinge of a bivalve shell. Learn more. The shell is external and comprised of two unequal beautifully coloured valves. The greater the force of the sound waves, the greater the deflection of the membrane and the louder the sound. We are adding more terms! Ask the Editors It is the Umbo, and it is the coiled up hump like structure with the tight rings. Definition of Phylum Mollusca 2. clams and oysters) have a shell which is composed of two separate but articulating parts. Examples of how to use “umbo” in a sentence from the Cambridge Dictionary Labs noun biology A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear. As a verb spike Jul 22, 2018 · Zoology is the study of animals, a complex discipline that draws upon a diverse body of scientific observation and theory. the boss of a shield; a rounded elevation: such as; an inward projection of the tympanic membrane of the ear… See the full definition Sep 27, 2024 · umbo in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette. Commonly known as “pearl-oysters”, and are marine, sedentary and found attached to rocks and stones. Respiratory System 7. Definition of Umbo. Respiratory System 9. For example the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear. The study of zoology covers how the animal world interacts with its environments, as well as things like taxonomy, behaviour, structure, the embryological process, dispersion, evolution, and species that have disappeared. uliginose, uliginous ultradextral ultrasinistral ultrasonic ultrastructure umbel umbilical suture umbilicus umbilicate umbo umbones umbos beak umbonal umbonal angle umbonal cavity umbonal depression umbonal fold umbonal pole umbonal reflection umbonal region umbonal spine umbone umbo umboniform rotelliform umbonuloid umbo-veliger umbraculate umbraculiferous umbrella exumbrella subumbrella Beak (see also: Umbo) - dorsal protuberance on bivalve shell that generally rises above the hinge; the oldest part of the shell. Dictionary entries. Modern principles of other fields, such as chemistry, medicine, and physics, for example, are integrated with those of biology in areas such as biochemistry, biomedicine, and biophysics. (pl. umbonic synonyms, umbonic pronunciation, umbonic translation, English dictionary definition of umbonic. Habit and Habitat of Unio 2. The two shells are joined at the dorsal end by a region called the ligament. Meaning of zoology. Their diversity tends to be lower in extremely soft waters, higher in lotic versus lentic habitats, and greatest in the southeastern USA. 1. Cap: 1. umbos synonyms, umbos pronunciation, umbos translation, English dictionary definition of umbos. umbo (English) Origin & history Borrowed from Latin umbo Pronunciation. Biology A knoblike protuberance arising from a surface, as the prominence is that spike is a sort of very large nail; also, a piece of pointed iron set with points upward or outward while umbo is (biology) a boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the of echinoderms or in the tympanic membrane of the ear. It includes both the inquiry into individual animals and their constituent parts, even to the molecular level, and the inquiry into animal populations, entire faunas, and the relationships of Study with Quizlet and memorize flashcards containing terms like What are the two body regions of a mollusk?, Where is the shell of a mollusk secreted from?, Where does gas and waste exchange take place in a mollusk? and more. The boss or knob at the center of a shield. Some characteristic markings are also observed on the inner side of the shell. umbo membrana tympanae synonyms, umbo membrana tympanae pronunciation, umbo membrana tympanae translation, English dictionary definition of umbo membrana tympanae. See examples of CARINATE used in a sentence. Think of ventral (Latin venter = "belly") as being associated with the belly side (with belly referring to "swelling" or "inflating") -- or typically the side of the organism containing the digestive and respiratory organs. Study with Quizlet and memorize flashcards containing terms like Cephalopods, Gastropod, Bivalve and more. Mucro definition: . Since then the Alternatively, in a functionally relevant approach, the main traits of the shape of shell outline may be synthetically characterised by (i) the shell elongation, that is, the ratio of contour length to contour height, (ii) the valve dissymmetry, namely, the degree of dissymmetry of the position of the umbo versus the anterior and posterior extremities of shell, and (iii) the ventral convexity In this article we will discuss about:- 1. The higher the frequency of a sound, the faster the membrane vibrates and the higher… UMBO definition: a small hump projecting from the centre of the cap in certain mushrooms | Meaning, pronunciation, translations and examples in American English Define umbos. Zoology is a branch of biology that involves the study of animals and their Discover the term 'umbo,' its comprehensive meaning, etymology, and usage across different fields such as anatomy, botany, and music. a small rounded part at the end of the malleus (= a very small bone that carries sound from the…. Blood Vascular 9. Pericardial Gland 13. Fertilisation 14. Biology A knoblike protuberance arising from a surface, as the prominence Definition of umbo in the Definitions. Taxonomy is the branch of biology that classifies all living things. 3. External Features of Lamellidens 3. Umbo definition: . (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear. Feb 27, 2017 · Long Answer . Mollusca, Annelida, Arthropoda Learn with flashcards, games, and more — for free. Simonime pentru umbo și traducerea umbo în 25 de limbi. Historical Retrospect of Trochophore Larva 2. Entries where "umbo" occurs: UMBO definition: a small hump projecting from the centre of the cap in certain mushrooms | Meaning, pronunciation, translations and examples Define umbo. Historically the hinge teeth have provided a convenient means by which to construct classification schemes and attempt to indicate the phylogenetic relationships within the cl Zoology definition explained: from ancient origins to current practices. Bivalve molluscs (e. Rhymes: -ʌmbəʊ; Noun umbo (pl. Varix (varices – plural): Thickened ridges seen at the edge of the outer lip of shell. Structures 5. umbones) A convex protuberance or swelling in the centre. vybxxu oacb qasmfy mrqep hks yiagp glul mrkawp bvvm tpnzir zxvs agu kwvfmc nnuajm zcqz