(n.) 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. See Mollusca.
(n.) A pericarp in which the seed case opens or splits into two parts or valves.
(a.) Having two shells or valves which open and shut, as the oyster and certain seed vessels.
Example Sentences:
(1) Start your exploring at Bearreraig Bay, where, if you are lucky, you may find belemnites, ammonites and bivalves.
(2) To compare biochemical differences between bivalves with and without endosymbiotic chemoautotrophic bacteria, specimens of Solemya velum, a bivalve species known to contain bacterial endosymbionts, and the symbiont-free soft-shelled clam Mya arenaria, were collected from the same subtidal reducing sediments during October and November 1988.
(3) We have demonstrated that M. edulis, a marine bivalve mollusc, reacts to the vertebrate monokines interleukin-1, -6 and TNF.
(4) Total neutral and acidic glycosphingolipids were prepared from whole tissues of the sea-water bivalve, Meretrix lusoria, and the former preparation was further fractionated into subgroups by silicic acid column chromatography.
(5) The development of microparticulate food particles for marine suspension-feeders is discussed with respect to the difficulties of nutrient delivery in the aquatic environment and to feeding and digestion in crustacea and bivalve molluscs.
(6) Attempts to introduce infectious or foreign material into oysters and other bivalve mollusks usually involve force or trauma because of immediate, prolonged adduction of the tightly closing valves.
(7) This observation, together with the finding that the oyster shell has a strong affinity for virus, suggests that surface properties, rather than size, are the principal factors governing the accumulation of viruses by filter-feeding marine bivalves.
(8) Chromatin organization in the sperm of the bivalve mollusks results from the interaction between a discrete number of protamine-like proteins (PL) and DNA.
(9) There was the doll's house-sized two-pronged fork, and the bivalves themselves, pale and ivory against the silvered shell.
(10) Infectious pancreatic necrosis virus of fish, infectious bursal disease virus of chickens, Tellina virus and oyster virus of bivalve molluscs, and drosophila X virus of Drosophila melanogaster are naked icosahedral viruses with an electron microscopic diameter of 58 to 60 nm.
(11) The control measures consisted of the prohibition of the harvest and sale of all bivalve mollusks as well as a public warning to avoid the consumption of such shellfish.
(12) The ultrastructural morphology of peripheral neurons and associated structures in the bivalve mollusc.
(13) In 6 male baboons, the left kidney was bivalved and repaired using a fibrin adhesive (group A) or conventional suturing (group B).
(14) There are various types of photoproteins: the photoproteins of coelenterates, ctenophores and radiolarians require Ca2+ to trigger their luminescence; the photoproteins of the bivalve Pholas and of the scale worm appear to involve superoxide radicals and O2 in their light-emitting reactions; the photoprotein of euphausiid shrimps emits light only in the presence of a special fluorescent compound; the photoprotein of the millipede Luminodesmus, the only known example of terrestrial origin, requires ATP and Mg2+ to emit light.
(15) Most progress is being made in relation to lethal blood mutant neoplasms in Drosophila, leukaemias of farmed salmonids among the fishes, and among shellfish, the hemic sarcomas of bivalves.
(16) Distribution of MlOse4Cer and MlXOse5Cer in various bivalve and snail glycolipid extracts were screened in thin-layer immunobinding assays by using this purified specific antibody.
(17) In the haemolymph of the Tridacnid bivalve clams anti-galactans occur which do not have only glycosubstance precipitating and cell agglutinating properties, but also show mitogenic activity with respect to the blast transformation of human peripheral lymphocytes.
(18) The pericardial glands of three bivalve molluscs are composed of convoluted epithelium that appears as pouches on the auricles of Mytilus and as tubules in the connective tissue at the anterior-lateral sides of the pericardial cavity of Mercenaria and Anodonta.
(19) Four biotypes and five antigenic types of bacteria, pathogenic for the larvae of five species of bivalve mollusks, were isolated and described in some detail.
(20) Laboratory toxicity tests performed on the bivalve Cerastoderma edule submitted to sublethal concentrations of paper mill effluent revealed significant decreases of adenylate energy charge (AEC), and changes in the total adenylate pool were observed in a 24-hr period even for the lowest concentration of pollutant tested.
Foot
Definition:
(n.) The terminal part of the leg of man or an animal; esp., the part below the ankle or wrist; that part of an animal upon which it rests when standing, or moves. See Manus, and Pes.
(n.) The muscular locomotive organ of a mollusk. It is a median organ arising from the ventral region of body, often in the form of a flat disk, as in snails. See Illust. of Buccinum.
(n.) That which corresponds to the foot of a man or animal; as, the foot of a table; the foot of a stocking.
(n.) The lowest part or base; the ground part; the bottom, as of a mountain or column; also, the last of a row or series; the end or extremity, esp. if associated with inferiority; as, the foot of a hill; the foot of the procession; the foot of a class; the foot of the bed.
(n.) Fundamental principle; basis; plan; -- used only in the singular.
(n.) Recognized condition; rank; footing; -- used only in the singular.
(n.) A measure of length equivalent to twelve inches; one third of a yard. See Yard.
(n.) Soldiers who march and fight on foot; the infantry, usually designated as the foot, in distinction from the cavalry.
(n.) A combination of syllables consisting a metrical element of a verse, the syllables being formerly distinguished by their quantity or length, but in modern poetry by the accent.
(n.) The lower edge of a sail.
(v. i.) To tread to measure or music; to dance; to trip; to skip.
(v. i.) To walk; -- opposed to ride or fly.
(v. t.) To kick with the foot; to spurn.
(v. t.) To set on foot; to establish; to land.
(v. t.) To tread; as, to foot the green.
(v. t.) To sum up, as the numbers in a column; -- sometimes with up; as, to foot (or foot up) an account.
(v. t.) The size or strike with the talon.
(v. t.) To renew the foot of, as of stocking.
Example Sentences:
(1) Three coyotes were operantly conditioned to depress one of two foot treadles, left or right, depending on the condition of the stimulus light.
(2) Rapid injection of 2 m Ci TC 99m into a dorsal vein of the foot produced isotope phlebograms with a Dyna camera 2 C.
(3) Degraded visual acuity had a significant effect on cadence, foot placement, and foot clearance, but visual surround conditions did not.
(4) Formation of the functional contour plaster bandage within the limits of the foot along the border of the fissure of the ankle joint with preservation of the contours of the ankles 4-8 weeks after the treatment was started in accordance with the severity of the fractures of the ankles in 95 patients both without (6) and with (89) dislocation of the bone fragments allowed to achieve the bone consolidation of the ankle fragments with recovery of the supportive ability of the extremity in 85 (89.5%) of the patients, after 6-8 weeks (7.2%) in the patients without displacement and after 10-13 weeks (11.3%) with displacement of the bone fragments of the ankles.
(5) Specific antisera prepared in rabbits or in foot-pad-inoculated chickens were adequate for culture typing.
(6) The home secretary was today pressed to explain how cyber warfare could be seen as being on an equal footing to the threat from international terrorism.
(7) An unusual spectrum of craniofacial and foot abnormalities has been detected within a large midwestern Amish kindred.
(8) MRPs were larger preceding foot movements than preceding finger movements, their onset being earlier also.
(9) 39.5 per cent of children have had suitable foot for weight-bearing, with normal shoes, and 23, 25 per cent have had prosthesis for discrepancy.
(10) The changes included swelling, blunting, and flattening of epithelial foot processes, were accompanied by decreased stainability of glomerular anionic sites, and were largely reversed by subsequent perfusion with the polyanion heparin.
(11) Translation of foot-and-mouth disease virus RNA for extended periods in rabbit reticulocyte lysates results in the appearance of a previously undescribed protein.
(12) In case 2, a 26-year-old man sustained an open total dislocation of the talus with a severe crush wound and impaired circulation to the foot.
(13) The diagnostic criterion was a difference in talar tilt of 6 or more degrees between the injured and uninjured foot on inversion stress radiographs.
(14) "Some of the shrapnel went into the arm of the Australian soldier that was hit, another part went into the foot [of the New Zealand soldier]," he told a news conference .
(15) Puskas, possessed of a left foot of astonishing power, and his team colleagues, Sandor Kocsis and Zoltan Czibor, all found their way to Spain.
(16) He could be the target of more punishing wit, as when Michael Foot, noting a tendency to be tougher abroad than at home, called him "a belligerent Bertie Wooster without even a Jeeves to restrain him."
(17) This law can be used to simulate the ground reaction force during under-foot impact with a gymnastic surface.
(18) Osteocutaneous flaps from the foot are being utilized more for thumb and digit reconstruction.
(19) Pompholyx (Dyshidrosis) is a disease of unknown etiology presenting as symmetrical, vesicular hand and foot dermatitis.
(20) The town's Castle Hill is the perfect climb for travellers with energy to burn off: at the top is a picnic spot with far-reaching views, and there is a small children's play area at its foot.