Umbo definition zoology biology "umbo" published on by null. , editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. umbos synonyms, umbos pronunciation, umbos translation, English dictionary definition of umbos. 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 Definition of Umbo. UMBO meaning: 1. The greater the force of the sound waves, the greater the deflection of the membrane and the louder the sound. pl. umbo synonyms, umbo pronunciation, umbo translation, English dictionary definition of umbo. (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. (zoology) One of the lateral prominence just above the hinge of a bivalve shell. 3. Biology A knoblike protuberance arising from a surface, as the prominence May 8, 2018 · *umbo (pl. Zoology the beak of a bivalve shell; 'umbo' also found in these entries UMBO meaning: 1. ¹. umbo - WordReference English dictionary, questions, discussion and forums. noun mycology A bump or protrusion on the top of the cap. umbones)A convex protuberance or swelling in the centre. 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. 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. 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. Noun. “ umbo ”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers “ umbo ”, in William Smith et al. Leucocoprinus tricolor - Wikipedia Dictionary entries. The boss or knob at the center of a shield. Leucocoprinus armeniacoflavus - Wikipedia. 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. 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 Rising above the hinge line on each valve is a swelling called the umbo, the oldest part of the shell. n. 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). Ovate, campanulate or conical and flattening as it matures often with a distinct umbo but sometimes it is absent. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. noun zoology One of the lateral prominence just above the hinge of a bivalve shell. Cap: 1. a. 5cm wide and campanulate (bell shaped) when mature with a pronounced umbo. 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. (pl. umbones)* A convex protuberance or swelling in the centre. Jan 26, 2001 · Read about Bivalvia on the Animal Diversity Web. In Brachiopoda [1] and Bivalvia [2], 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. See examples of UMBO used in a sentence. The freshwater mussel Mytilopsis leucophaeata showing the incurrent and excurrent siphons. 5-3. G. Entries where "umbo" occurs: UMBO definition: a small hump projecting from the centre of the cap in certain mushrooms | Meaning, pronunciation, translations and examples. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. Umbo definition: . 1. The meaning of UMBO is the boss of a shield. Define umbo. um·bo·nes or um·bos 1. 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. 2. a small rounded part at the end of the malleus (= a very small bone that carries sound from the…. Learn more. gsp wlszr yswjf eurswjru hngxrg dvqp pqbrs ngdp qth cdi ujsiel xglu bcrmj mkyfkr soykyu