bivalve definition medical

However, the official bivalve definition encompasses any aquatic mollusk belonging to the class Bivalvia, such … Learn more. 1. a bivalved mollusk [n -S] Medical Definition of Bivalve. bivalve in British English. Bivalvia (/ baɪˈvælviə /), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. Bivalvia definition is - the Lamellibranchia and Brachiopoda considered as a natural group; sometimes : lamellibranchia. On Food and Cooking, The Science and Lore of the Kitchen. Bivalve molluscs synonyms, Bivalve molluscs pronunciation, Bivalve molluscs translation, English dictionary definition of Bivalve molluscs. Any mollusc belonging to the taxonomic class Bivalvia, characterized by a shell consisting of two hinged sections, such as a scallop, clam, mussel or oyster. A bivalve shell is part of the body, the exoskeleton or shell, of a bivalve mollusk.In life, the shell of this class of mollusks is composed of two hinged parts or valves.Bivalves are very common in essentially all aquatic locales, including saltwater, brackish water, and freshwater. , that attach to the substratum by one valve (i.e., lying on their sides), the left-hand (or upper) valve is larger than the right-hand (or lower) one. The shell is made up of two valves, the upper one flat and the lower convex, with variable outlines and a rough outer surface. Noun 1. See more. ( ˈbaɪˌvælv) n. (Zoology) Also: pelecypod or lamellibranch any marine or freshwater mollusc of the class Pelecypoda (formerly Bivalvia or Lamellibranchia ), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. Accessed 30 Nov. 2020. (Zoöl.) Send us feedback. bivalve - WordReference English dictionary, questions, discussion and forums. 1. Bivalve molluscs synonyms, Bivalve molluscs pronunciation, Bivalve molluscs translation, English dictionary definition of Bivalve molluscs. All Free. Information and translations of golden bivalve in the most comprehensive dictionary definitions resource on the web. Define univalve. A bivalve speculum with wide blades, used to inspect the vagina and cervix. What does bivalve shell mean? Our Word of the Year 'pandemic,' plus 11 more. Most possess one or more shells and have a body structure that is unsegmented, with a COELOM. ... bivalve, bivalved - used of mollusks having two shells (as clams etc.) But you may not have realized that these creatures are also called bivalves. a type of mollusk, such as an oyster, that has its body inside two connected shells: They fish for clams, oysters, and other bivalves. ¹. a type of mollusc, such as an oyster, that has its body inside two connected shells: They fish for clams, oysters, and other bivalves. bivalve. What does golden bivalve mean? Bivalve information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. Bivalve - Bivalve - The respiratory system: In the primitive bivalves the paired gills are small and located posteriorly. bivalve, lamellibranch, pelecypod - marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together spat - a young oyster or other bivalve Myaceae, order Myaceae - clams family Tridacnidae, Tridacnidae - large marine hard-shell clams See also: speculum. The FDA considers a product to be a device, and subject to FDA regulation, if it meets the definition of a medical device per Section 201(h) of the Food, Drug, and Cosmetic Act. Medical Definition of bivalve (Entry 1 of 2) : having or consisting of two corresponding movable pieces suggesting the shells of mollusks a bivalve speculum a bivalve cast See the full definition for bivalve in the English Language Learners Dictionary, Medical Definition of bivalve (Entry 2 of 2), Nglish: Translation of bivalve for Spanish Speakers, Britannica.com: Encyclopedia article about bivalve. All bivalves are aquatic, living at all depths of the sea and in brackish and fresh waters. bivalve mollusk found in beds in shallow, warm waters of all oceans. bivalve Having two leaves or folding parts: as, a bivalve speculum. Information and translations of bivalve shell in the most comprehensive dictionary definitions resource on the web. Definition of bivalve written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. Noun 1. The shell is closed by the contraction of two transverse muscles attached to the inner surface, as in the clam, -- or by one, as in the oyster. Having a shell consisting of a single valve or piece. A bivalve is an animal that has two hinged shells, which are called valves. Definition of Bivalve. Examples of bivalves are clams, mussels, oysters, and scallops. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. 1. Bivalve information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. (Science: marine biology) a mollusk having a shell consisting of two lateral plates or valves joined together by an elastic ligament at the hinge, which is usually strengthened by prominences called teeth. ¹ Source: wiktionary.com. Noun 1. Information and translations of bivalve in the most comprehensive … Bivalve. “Bivalve.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bivalve. You likely know them as shellfish.But you may not have realized that these creatures are also called bivalves. ¹. https://medical-dictionary.thefreedictionary.com/bivalve, Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. bivalve. Etymology. What made you want to look up bivalve? 1. Medical Author: Melissa Conrad Stöppler, MD; Anoscope: An Anoscope is an instrument used for visualization of the anus and lowest portion of the rectum. Enrich your vocabulary with the English Definition dictionary Define Bivalvia. Bivalve 1. bivalve definition in English dictionary, bivalve meaning, synonyms, see also 'bivalvate',bivalent',bivalence',bivalency'. A mollusk having a shell consisting of two lateral plates or valves joined together by an elastic ligament at the hinge, which is usually strengthened by prominences called teeth.The shell is closed by the contraction of two transverse muscles attached to the inner surface, as in the clam, -- or by one, as in the oyster. An anoscope is a tube that can be inserted with a lubricant into the anal canal. Definition of Bivalve. Bivalvia synonyms, Bivalvia pronunciation, Bivalvia translation, English dictionary definition of Bivalvia. Also: pelecypod, lamellibranch. Bivalve definition, any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. 1. With about 25,000 living species, Bivalvia is second to class Gastropoda (over 74,000) in molluscan species diversity. 1. One of the five classes in the phylum Mollusca, sometimes known as Pelecypoda. Bivalves are a type of sea mollusk and are closely related to other types of mollusks, such as squid, octopuses, snails and slugs. Any mollusc belonging to the taxonomic class Bivalvia, characterized by a shell consisting of two hinged sections, such as a scallop, clam, mussel or oyster. Cockle (bivalve) synonyms, Cockle (bivalve) pronunciation, Cockle (bivalve) translation, English dictionary definition of Cockle (bivalve). ; bivalve In botany, having two valves, as a seed-case. bivalve meaning: 1. a type of mollusc, such as an oyster, that has its body inside two connected shells: 2. having…. Not all bivalves have externally visible shells - some are small, some are not even visible. Bivalves: Medical dictionary [home, info] Science (1 matching dictionary) bivalves: Dictionary of Botanical Epithets [home, info] (Note: See bivalve for more definitions.) Definition of bivalve shell in the Definitions.net dictionary. The Ordovician was a major period of bivalve speciation, but throughout the Paleozoic the Bivalvia remained second to bivalves of the phylum Brachiopoda in species diversity and abundance. 'All Intensive Purposes' or 'All Intents and Purposes'? Some are terrestrial, but the majority are aquatic. This is the British English definition of bivalve.View American English definition of bivalve.. Change your default dictionary to American English. See more. You may have seen or even eaten an oyster or scallop. ; n bivalve In zoology, a headless lamellibranch mollusk whose shell has two hinged valves, which are opened and shut by appropriate muscles: opposed to univalve. bivalve, aquatic mollusk of the class Pelecypoda ("hatchet-foot") or Bivalvia, with a laterally compressed body and a shell consisting of two valves, or movable pieces, hinged by an elastic ligament. Noun. ; bivalve In zoology, having two shells united by a hinge. You likely know them as shellfish. Can you spell these 10 commonly misspelled words? Also called lamellibranch, pelecypod. Mollusks are a type of animal with a soft body. The group includes the gastropods (snails, slugs, etc), bivalves (clams, mussels, etc), and cephalopods (cuttlefish, octopuses, etc) 1. a bivalved mollusk [n -S] Medical Definition of Bivalve. A bivalve's shell is formed of calcium carbonate that is secreted from the bivalve's mantle, which is the soft wall of the animal's body.The shell grows as the organism inside gets bigger. What does bivalve mean? Define Cockle (bivalve). 1. The taxonomic term Bivalvia was first used by Linnaeus in the 10th edition of his Systema Naturae in 1758 to refer to animals having shells composed of two valves. That's because all bivalve animals have two shells that can open and close like doors. Please tell us where you read or heard it (including the quote, if possible). bivalve, aquatic mollusk of the class Pelecypoda ("hatchet-foot") or Bivalvia, with a laterally compressed body and a shell consisting of two valves, or movable pieces, hinged by an elastic ligament. univalve synonyms, univalve pronunciation, univalve translation, English dictionary definition of univalve. The gills in all other bivalves (save septibranchs, which have lost their gills) are greatly enlarged and possess a huge surface area. any marine or freshwater mollusc of the class Pelecypoda ( formerly Bivalvia or Lamellibranchia ), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. Meaning of bivalve. Deep-sea wood borers (Xylophaga, a genus of, In 2005, the oyster as aphrodisiac got a big boost as many consumer publications reported that, While the lyric connotes cozy relations between the famously fertile shellfish of this, Selected from gulf, east, or west, a variety of, Post the Definition of bivalve to Facebook, Share the Definition of bivalve on Twitter. Learn more. (ˈbaɪˌvælv ) noun. What Is a Bivalve? ear speculum A short, funnel-shaped tube, tubular or bivalve (the former being preferable), used … All Free. ‘Sea urchins, like bivalve molluscs, are cosmopolitan in their distribution and by selecting a range of species a regular supply of gametes can be obtained for laboratory testing purposes.’ ‘The smaller waders will feed on the bivalve molluscs and the little worms … Bivalve definition: any marine or freshwater mollusc of the class Pelecypoda ( formerly Bivalvia or... | Meaning, pronunciation, translations and examples Test Your Knowledge - and learn some interesting things along the way. Bivalves synonyms, Bivalves pronunciation, Bivalves translation, English dictionary definition of Bivalves. You may have seen or even eaten an oyster or scallop. Meaning of golden bivalve. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Quick definitions from WordNet (bivalve) noun: marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together Bivalve definition is - being or having a shell composed of two valves. Univalve definition, having one valve. ; n bivalve plural Folding doors. Medical Dictionary, © 2009 Farlex and Partners. Bivalve filter feeders—mussels, clams, scallops, oysters—concentrate algal toxins in their gills and/or digestive organs, and then transmit the poisons to other shell-fish—usually crabs and whelks—or to humans. Bivalve Bi"valve ( ), n. [F. bivalve; bi-(L. bis) + valve valve.] bivalve. ( botany ) A pericarp in which the seed case opens or splits into two parts or valves . Learn a new word every day. bivalve - WordReference English dictionary, questions, discussion and forums. During the Mesozoic Era, the brachiopods declined in importance. adj. 1. Also found in: Dictionary, Thesaurus, Medical. Cardiidae - somewhat heart-shaped sand-burrowing bivalve mollusks family Cardiidae mollusk family - a … Bivalves are found in both freshwater and marine environments. A speculum (Latin for "mirror"; plural specula or speculums), is a medical tool for investigating body orifices, with a form dependent on the orifice for which it is designed.In old texts, the speculum may also be referred to as a diopter or dioptra. bivalve: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) bivalve: Encyclopedia [home, info] Medicine (2 matching dictionaries) bivalve: online medical dictionary [home, info] bivalve: Medical dictionary [home, info] Science (6 matching dictionaries) bivalve: Dictionary of Botanical Epithets [home, info] Like an endoscope, a speculum allows a view inside the body; endoscopes, however, tend to have optics while a speculum is intended for direct vision. 1. Bivalve - Bivalve - The respiratory system: In the primitive bivalves the paired gills are small and located posteriorly. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Definition of Bivalve. Hinge teeth are part of the anatomical structure of the inner surface of a bivalve shell, i.e. Bivalve definition: any marine or freshwater mollusc of the class Pelecypoda ( formerly Bivalvia or... | Meaning, pronunciation, translations and examples What Are Bivalves? Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Also called, The very low levels of the heavy metals copper and zinc in mussel pallial fluid, however, suggest that they have a less important role as anti-bacterial agents in mussels than in oysters and support the conclusion that antimicrobial factors, in addition to lysozyme and heavy metals, are involved in the immune response of this, melanogaster, and shell matrix proteins in, Nor would the pattern of over- and underrepresentation of, (2010) who studied the biology and ecology of the, ARS scientists are looking at the impact of, After poring over more than 62,000 records of where marine, The calcium carbonate crystalline phase in, A small hand shovel or rake can aid in your pursuit of these tasty, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Sclerochronology-based geochemical studies of bivalve shells: potential vs reality/Karbikodade sklerokronoloogilis-geokeemilised uuringud: voimalused ja tegelik olukord, ANTIMICROBIAL ACTIVITY IN THE PALLIAL CAVITY FLUIDS OF THE RIBBED MUSSEL GEUKENSIA DEMISSA FROM A HIGHLY IMPACTED HARBOR IN WESTERN LONG ISLAND SOUND, Extracellular Matrix Components in Bivalvia: Shell and ECM Components in Developmental and Adult Tissues, PATTERNS OF GASTROPOD MOLLUSK PREDATION ON BIVALVE MOLLUSKS ALONG THE UPPER TEXAS GULF COAST, Distribution and density of the bivalve Anomalocardia brasiliana in the estuarine region of Northeastern Brazil/Distribuicao e densidade do bivalve Anomalocardia brasiliana em regiao estuarina do semiarido do Nordeste do Brasil, ARS Strategies To Benefit Aquaculture Industry, Large Shifts in Commercial Landings of Estuarine and Bay Bivalve Mollusks in Northeastern United States after 1980 with Assessment of the Causes, Researchers Develop Model To Estimates Regional Distribution Of Species, Species diversity and distribution of marine bivalves from coastal transitional ecosystem of Uran, Navi Mumbai, India, Physiological versus biological control in bivalve calcite prisms: Comparison of euheterodonts and pteriomorphs, Digging for buried treasure--clamming in New York's waters, Bivalirudin in Combination with Eptifibatide, Bizarre Parosteal Osteochondromatous Proliferation. 'Nip it in the butt' or 'Nip it in the bud'? A speculum with two opposed blades that can be separated or closed. Bivalves are animals that have a shell with two halves, or valves. 1. Univalve definition is - a mollusk with a shell consisting of one valve; especially : gastropod. the shell of a bivalve mollusk.Bivalves by definition have two valves, which are joined together by a strong and flexible ligament situated on the hinge line at the dorsal edge of the shell. bivalve, aquatic mollusk of the class Pelecypoda ("hatchet-foot") or Bivalvia, with a laterally compressed body and a shell consisting of two valves, or movable pieces, hinged by Definition of bivalve noun in Oxford Advanced American Dictionary. bivalve speculum. The fossil record of the Bivalvia can be traced to the Lower Cambrian Fordilla. Definition of Bivalve. Delivered to your inbox! Enrich your vocabulary with the English Definition dictionary ¹ Source: wiktionary.com. A gastropod, especially one with a single shell, such as a snail, cone, whelk, abalone, or limpet. any member of the phylum Mollusca, including the snails (GASTEROPODS), BIVALVES, the squids and octopuses (CEPHALOPODS), and two minor classes, the Amphineura and Scaphopoda. The word 'bivalve' comes from the Latin bis ('two') and valvae('leaves of a door'). All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Noun. All bivalves are mollusks. Bivalve (noun) a mollusk having a shell consisting of two lateral plates or valves joined together by an elastic ligament at the hinge, which is usually strengthened by prominences called teeth. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. How to use bivalve in a sentence. Medical Definition of Anoscope. ( ˈbaɪˌvælv) n. (Zoology) Also: pelecypod or lamellibranch any marine or freshwater mollusc of the class Pelecypoda (formerly Bivalvia or Lamellibranchia ), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. bivalve (plural bivalves) Any mollusc belonging to the taxonomic class Bivalvia , characterized by a shell consisting of two hinged sections, such as a scallop , clam , mussel or oyster . See: vaginal speculum. Which word describes a musical performance marked by the absence of instrumental accompaniment. Univalve definition is - a mollusk with a shell consisting of one valve; especially : gastropod. Definition and synonyms of bivalve from the online English dictionary from Macmillan Education.. Definition of golden bivalve in the Definitions.net dictionary. The valves are connected to one another at a hinge. Bivalves are aquatic animals, and different species of bivalve… (Animals) any invertebrate of the phylum Mollusca, having a soft unsegmented body and often a shell, secreted by a fold of skin (the mantle). Bivalves are a group of mollusks that includes clams, scallops, oysters, mussels, razor shells, cockles, venus shells, borers, trough shells and many others (some of which live in the deep sea and have yet to be identified).Bivalves are the second most diverse group of mollusks, ranking only behind gastropods in number of species. (bī′vălv′) n. Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. Meaning of bivalve shell. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bivalve.' Noun 1. Definition of bivalve noun in Oxford Advanced Learner's Dictionary. bivalve definition: 1. a type of mollusc, such as an oyster, that has its body inside two connected shells: 2. having…. Definition of bivalve in the Definitions.net dictionary. Click the link for more information. Bivalve, (class Bivalvia), any of more than 15,000 species of clams, oysters, mussels, scallops, and other members of the phylum Mollusca characterized by a shell that is divided from front to back into left and right valves. The gills in all other bivalves (save septibranchs, which have lost their gills) are greatly enlarged and possess a huge surface area. bivalve definition in English dictionary, bivalve meaning, synonyms, see also 'bivalvate',bivalent',bivalence',bivalency'. The word bivalve means “two valves.” Bivalves are part of a larger group called mollusks . A bivalve is an animal belonging to the class Bivalvia.

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