| bird's nest filter | A wire mesh vena cava filter. (05 Mar 2000) |
|---|---|
| bird's nest ivc filter | <radiology> Introduced 1982; Cook Inc., Bloomington, IN advantages, low profile: 14.5 Fr introducer sheath, low recurrent PE rates (1.1 - 2.7% by clinical history), low IVC thrombosis rates (2.9 - 5.0% by clinical history), placement in large diameter IVCs (not greater than40mm), free-form configuration does not require centreing in IVC disadvantages: stainless steel: ferromagnetic = magnetic susceptibility artifact, more operator dependent, difficult to place in short IVCs (need about 7cm for proper placement), prolapse of filter wires (? clinical significance) see also: indications (12 Dec 1998) |
| Bird's sign | <clinical sign> The presence of a zone of dullness on percussion with absence of respiratory sign's in hydatid cyst of the lung. (05 Mar 2000) |
| bird's-tongue | <botany> The knotgrass (Polygonum aviculare). Source: Websters Dictionary (01 Mar 1998) |
| bird unit | A unit of prolactin activity: the minimal quantity of the hormone which will cause a certain increase in weight of the crop gland of pigeons. (05 Mar 2000) |
| bower bird | <zoology> An Australian bird (Ptilonorhynchus violaceus or holosericeus), allied to the starling, which constructs singular bowers or playhouses of twigs and decorates them with brightcoloured objects; the satin bird. The name is also applied to other related birds of the same region, having similar habits; as, the spotted bower bird (Chalmydodera maculata), and the regent bird (Sericulus melinus). Source: Websters Dictionary (01 Mar 1998) |
| galley-bird | <zoology> The European green woodpecker; also, the spotted woodpecker. Origin: Etymol. Uncertain. Source: Websters Dictionary (01 Mar 1998) |
| mallee bird | <zoology> [From native name. The leipoa. See Leipoa. Source: Websters Dictionary (01 Mar 1998) |
| peabody bird | <ornithology> An American sparrow (Zonotrichia albicollis) having a conspicuous white throat. The name is imitative of its note. Synonym: White-throated sparrow. (26 Mar 1998) |
| mino bird | <zoology> An Asiatic bird (Gracula musica), allied to the starlings. It is black, with a white spot on the wings, and a pair of flat yellow wattles on the head. It is often tamed and taught to pronounce words. Origin: Hind. Maina. Source: Websters Dictionary (01 Mar 1998) |
| water bird | <zoology> Any aquatic bird; a water fowl. Source: Websters Dictionary (01 Mar 1998) |
| weet-bird | <zoology> The wry neck; so called from its cry. Source: Websters Dictionary (01 Mar 1998) |
| wheatsel bird | <zoology> The male of the chaffinch. Source: Websters Dictionary (01 Mar 1998) |
| whidah bird | <ornithology> Any one of several species of finchlike birds belonging to the genus Vidua, native of Asia and Africa. In the breeding season the male has very long, drooping tail feathers. Synonym: vida finch, whidah finch, whydah bird, whydah finch, widow bird, and widow finch. Some of the species are often kept as cage birds, especially Vidua paradisea, which is dark brownish above, pale buff beneath, with a reddish collar around the neck. Source: Websters Dictionary (01 Mar 1998) |
| widow bird | <zoology> See Whidan bird. Source: Websters Dictionary (01 Mar 1998) |