| butterfly lung | Haemorrhagic markings appearing on an animal's lung after inoculation with Leptospira interrogans (L. Icterohaemorrhagiae). (05 Mar 2000) |
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| butterfly patch | Origin: Perh. From the colour of a yellow species. AS. Buter-flege, buttor-fleoge; cf. G. Butterfliege, D. Botervlieg. See Butter, and Fly. <zoology> A general name for the numerous species of diurnal Lepidoptera. See: Illust. Under Aphrodite] Asclepias butterfly. See Asclepias. Butterfly fish, a kind of double clack valve, consisting of two semicircular clappers or wings hinged to a cross rib in the pump bucket. When open it somewhat resembles a butterfly in shape. Source: Websters Dictionary (01 Mar 1998) |
| butterfly pattern | Bilateral, symmetric, pulmonary alveolar opacities sparing the periphery, on chest radiographs; usually caused by pulmonary oedema. (05 Mar 2000) |
| butterfly rash | Origin: Perh. From the colour of a yellow species. AS. Buter-flege, buttor-fleoge; cf. G. Butterfliege, D. Botervlieg. See Butter, and Fly. <zoology> A general name for the numerous species of diurnal Lepidoptera. See: Illust. Under Aphrodite] Asclepias butterfly. See Asclepias. Butterfly fish, a kind of double clack valve, consisting of two semicircular clappers or wings hinged to a cross rib in the pump bucket. When open it somewhat resembles a butterfly in shape. Source: Websters Dictionary (01 Mar 1998) |
| butterfly vertebra | A hemivertebra or sagittally cleft vertebra that has a butterfly configuration on frontal radiographs; congenital in origin. (05 Mar 2000) |
| butterine | A substance prepared from animal fat with some other ingredients intermixed, as an imitation of butter. "The manufacturers ship large quantities of oleomargarine to England, Holland, and other countries, to be manufactured into butter, which is sold as butterine or suine." (Johnson's Cyc) Source: Websters Dictionary (01 Mar 1998) |
| butteris | <veterinary> A steel cutting instrument, with a long bent shank set in a handle which rests against the shoulder of the operator. It is operated by a thrust movement, and used in paring the hoofs of horses. Origin: The same word as buttress, noun, in a different application, F. Bouter to push. Source: Websters Dictionary (01 Mar 1998) |
| buttermilk | The fluid containing casein and lactic acid, left after the process of making butter. (05 Mar 2000) |
| butternut | 1. <botany> An American tree (Juglans cinerea) of the Walnut family, and its edible fruit; so called from the oil contained in the latter. Sometimes called oil nut and white walnut. 2. <botany> The nut of the Caryocar butyrosum and C. Nuciferum, of S. America. Synonym: Souari nut. Source: Websters Dictionary (01 Mar 1998) |
| butterweed | <botany> An annual composite plant of the Mississippi valley (Senecio lobatus). Source: Websters Dictionary (01 Mar 1998) |
| butterwort | <botany> A genus of low herbs (Pinguicula) having simple leaves which secrete from their glandular upper surface a viscid fluid, to which insects adhere, after which the margin infolds and the insects are digested by the plant. The species are found mostly in the North Temperate zone. Source: Websters Dictionary (01 Mar 1998) |
| buttery | Origin: OE. Botery, botry; cf. LL. Botaria wine vessel; also OE. Botelerie, fr. F. Bouteillerie, fr. Boutellie bottle. Not derived from butter. See Bottle a hollow vessel, Butt a cask. 1. An apartment in a house where butter, milk and other provisions are kept. "All that need a cool and fresh temper, as cellars, pantries, and butteries, to the north." (Sir H. Wotton) 2. A room in some English colleges where liquors, fruit, and refreshments are kept for sale to the students. "And the major Oxford kept the buttery bar." (E. Hall) 3. A cellar in which butts of wine are kept. Buttery hatch, a half door between the buttery or kitchen and the hall, in old mansions, over which provisions were passed. Source: Websters Dictionary (01 Mar 1998) |