| thornbird | <ornithology> A small South American bird (Anumbius anumbii) allied to the ovenbirds of the genus Furnarius). It builds a very large and complex nest of twigs and thorns in a bush or tree. Source: Websters Dictionary (01 Mar 1998) |
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| thornbut | <zoology> The turbot. Origin: Thorn + -but as in halibut; cf. G. Dornbutt. Source: Websters Dictionary (01 Mar 1998) |
| thorntail | <zoology> A beautiful South American humming bird (Gouldia Popelairii), having the six outer tail feathers long, slender, and pointed. The head is ornamented with a long, pointed crest. Source: Websters Dictionary (01 Mar 1998) |
| Thornwaldt | Gustavus Ludwig. See: Tornwaldt. (05 Mar 2000) |
| thorny | 1. Full of thorns or spines; rough with thorns; spiny; as, a thorny wood; a thorny tree; a thorny crown. 2. Like a thorn or thorns; hence, figuratively, troublesome; vexatious; harassing; perplexing. "The thorny point of bare distress." "The steep and thorny way to heaven. <botany>" (Shak) Thorny rest-harrow, rest-harrow. Thorny trefoil, a prickly plant of the genus Fagonia (F. Cretica, etc). Origin: Cf. AS. Thorniht. Source: Websters Dictionary (01 Mar 1998) |
| thorotrast | <radiology> Previously used contrast agent, accumulated in RE system, liver, spleen, lymph nodes, thorium emits alpha particles, associated with: hepatobiliary carcinoma, leukaemia, aplastic anaemia, dense liver and spleen, bone within a bone (12 Dec 1998) |
| thorough-pin | <veterinary> A disease of the hock (sometimes of the knee) of a horse, caused by inflammation of the synovial membrane and a consequent excessive secretion of the synovial fluid. This is probably so called because there is synovial distention of the sheath of the flexor perforans tendon producing an oval swelling on each side of the leg, appearing somewhat as if a pin had been thrust through. Source: Websters Dictionary (21 Jun 2000) |
| thoroughbred | Bred from the best blood through a long line; pure-blooded; said of stock, as horses. Hence, having the characteristics of such breeding; mettlesome; courageous; of elegant form, or the like. A thoroughbred animal, especially a horse. Source: Websters Dictionary (01 Mar 1998) |
| thoroughwax | <botany> An umbelliferous plant (Bupleurum rotundifolium) with perfoliate leaves. Thoroughwort. Source: Websters Dictionary (01 Mar 1998) |
| thoth | 1. The god of eloquence and letters among the ancient Egyptians, and supposed to be the inventor of writing and philosophy. He corresponded to the Mercury of the Romans, and was usually represented as a human figure with the head of an ibis or a lamb. 2. <zoology> The Egyptian sacred baboon. Source: Websters Dictionary (01 Mar 1998) |
| thought broadcasting | The delusion of experiencing one's thoughts, as they occur, as being broadcast from one's head to the external world where other people can hear them. (05 Mar 2000) |
| thought insertion | The delusion that one's thoughts are not really one's own but are being placed into one's mind by an external force. (05 Mar 2000) |
| thought process disorder | An intellectual function symptom of schizophrenia, manifested by irrelevance and incoherence of verbal productions ranging from simple blocking and mild circumstantiality to total loosening of associations. (05 Mar 2000) |
| thought withdrawal | The delusion that one's thoughts have been removed from one's head resulting in a diminished number of thoughts remaining. (05 Mar 2000) |
| thousand legs | <zoology> A millepid, or galleyworm. Synonym: thousand-legged worm. Source: Websters Dictionary (01 Mar 1998) |