| Thompson's ligament | Thickened inferior margin of the transversalis fascia seen as a fibrous band running parallel and posterior (deep) to the inguinal ligament, contributing to the posterior wall of the inguinal canal as it bridges the external iliac-femoral vessels from the iliopectineal arch to the superior pubic ramus. It marks the inferior edge of the deep inguinal ring and the medial margin of the femoral canal. Seen only when the inguinal region is viewed from its internal aspect, it is a useful landmark in laparoscopy of this region, as for repair of inguinal herniae. Synonym: deep crural arch, Thompson's ligament. (05 Mar 2000) |
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| Thompson's test | The urine, in a case of gonorrhoea, is passed into two glasses; if the gonococci and gonorrhoeal threads are found only in the first glass the probability is that the process is limited to the anterior urethra. Synonym: two-glass test. (05 Mar 2000) |
| Thompson, Sir Henry | <person> English surgeon, 1820-1904. See: Thompson's test. (05 Mar 2000) |
| thomsen's disease | <medicine> An affection apparently congenital, consisting in tonic contraction and stiffness of the voluntary muscles occurring after a period of muscular inaction. Origin: From Thomsen, a physician of Sleswick. Source: Websters Dictionary (01 Mar 1998) |
| Thomsen, Asmus | <person> Danish physician, 1815-1896. See: Thomsen's disease. (05 Mar 2000) |
| thomsenolite | <chemical> A fluoride of aluminium, calcium, and sodium occurring with the cryolite of Greenland. Origin: Named after Dr. J.Thomsen of Copenhagen. See -lite. Source: Websters Dictionary (01 Mar 1998) |
| Thomson scattering | <radiobiology> Scattering of photons by electrons, in the classical (low photon energy) limit. Laser light passed through a plasma will experience Thomson scattering, the spread of the scattered light in energy provides a very good measurement of the electron temperature of the plasma. (09 Oct 1997) |
| Thomson's disease | <disease> Glycogen storage disease in which the missing enzyme is phosphoglucomutase. See: lysosomal diseases. (18 Nov 1997) |
| Thomson's sign | <clinical sign> The presence of pink or red transverse lines at the bend of the elbow in the preeruptive stage of scarlatina; they persist through the eruptive stage and remain as pigmented lines after desquamation. Synonym: Thomson's sign. (05 Mar 2000) |
| Thomson, F | <person> English physician, 1867-1938. See: Thomson's sign. (05 Mar 2000) |
| Thomson, Matthew Sidney | <person> English dermatologist, *1894. See: Rothmund-Thomson syndrome. (05 Mar 2000) |
| thomsonian | <medicine> Of or pertaining to Thomsonianism. A believer in Thomsonianism; one who practices Thomsonianism. Source: Websters Dictionary (01 Mar 1998) |
| thomsonianism | <medicine> An empirical system which assumes that the human body is composed of four elements, earth, air, fire, and water, and that vegetable medicines alone should be used; from the founder, Dr. Samuel Thomson, of Massachusetts. Source: Websters Dictionary (01 Mar 1998) |
| thomsonite | <chemical> A zeolitic mineral, occurring generally in masses of a radiated structure. It is a hydrous silicate of aluminia, lime, and soda. Synonym: mesole, and comptonite. Origin: From R.D.Thomson, of Glasgow. Source: Websters Dictionary (01 Mar 1998) |
| thong | A strap of leather; especially, one used for fastening anything. "And nails for loosened spears, and thongs for shields, provide. <zoology> " (Dryden) Thong seal, the bearded seal. See the Note under Seal. Origin: OE. Thong, thwong, thwang, AS. Thwang; akin to Icel. Thvengr a thong, latchet. 57. Cf. Twinge. Source: Websters Dictionary (01 Mar 1998) |