| trisomy 21 syndrome | <syndrome> A common chromosome disorder due to an extra chromosome number 21 (trisomy 21). The syndrome causes mental retardation, a characteristic face, and multiple malformations. It is associated with a major risk for heart problems, a lesser risk of duodenal atresia (part of the intestines not developed), and a minor but still significant risk of acute leukaemia. Trisome 21 syndr0ome is also commonly called down syndrome after the 19th century english doctor langdon down who was curiously enough not the first person to describe the condition, added little to knowledge and, in great error, attributed the condition to a reversion to the mongoloid race. The disorder was also once called mongolism, a term now considered slang. (12 Dec 1998) |
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| trisomy 8 syndrome | <syndrome> Craniofacial dysmorphia, short wide neck but narrow cylindrical trunk, and multiple joint and digital defects. (05 Mar 2000) |
| trisomy C syndrome | <syndrome> Trisomy for any chromosome of group C, numbers 6 through 12, most often number 8. (05 Mar 2000) |
| trisomy D syndrome | <syndrome> A condition with three rather than the normal two chromosomes 13. Children born with this syndrome have multiple malformations and mental retardation due to the extra chromosome 13. The congenital malformations (birth defects) commonly include scalp defects, haemangiomas (blood vessel malformations) of the face and nape of the neck, cleft lip and palate, malformations of the heart and abdominal organs, and flexed fingers with extra digits. The mental retardation is profound. The iq is untestably low. The majority of trisomy 13 babies die soon after birth or in infancy. The condition is also called patau syndrome after the late geneticist klaus patau (at the university of wisconsin) who discovered the extra chromosome in 1960. (17 Dec 1998) |
| trispaston | <mechanics> A machine with three pulleys which act together for raising great weights. Origin: NL. Trispaston, fr. Gr. Drawn threefold; (see Tri-) + to draw. Source: Websters Dictionary (01 Mar 1998) |
| trispermous | <botany> Containing three seeds; three-seeded; as, a trispermous capsule. Origin: Pref. Tri- + Gr. Seed. Source: Websters Dictionary (01 Mar 1998) |
| trisplanchnic | <anatomy> Of or pertaining to the three great splanchnic cavities, namely, that of the head, the chest, and the abdomen; applied to the sympathetic nervous system. Origin: Tri- + splanchnic. Source: Websters Dictionary (01 Mar 1998) |
| tristearin | <physiology> See Stearin. Origin: Pref. Tri- + stearin. Source: Websters Dictionary (01 Mar 1998) |
| tristichia | Presence of three rows of eyelashes. Origin: G. Tristichos, in three rows, fr. Tri-, three, + stichos, row (05 Mar 2000) |
| tristichous | <botany> Arranged in three rows on a stem, each row in the same plane. (09 Oct 1997) |
| tristigmatose | <botany> Having, or consisting of, three stigmas. Origin: Pref. Tri- + stigma. Source: Websters Dictionary (01 Mar 1998) |
| tristoma | <zoology> Any one of numerous species of trematode worms belonging to Tristoma and allied genera having a large posterior sucker and two small anterior ones. They usually have broad, thin, and disklike bodies, and are parasite on the gills and skin of fishes. Origin: NL, from Gr. (see Tri-) + mouth. Source: Websters Dictionary (01 Mar 1998) |
| tristylous | <botany> Heterostylous species having three style lengths (short, mid, long), the flowers of any one plant having styles of the same length. (09 Oct 1997) |
| trisulcate | Marked by three grooves. (05 Mar 2000) |
| trisulphide | <chemistry> A sulphide containing three atoms of sulphur. Origin: Pref. Tri- + sulphide. Source: Websters Dictionary (01 Mar 1998) |
| trisomy |
Possessing three copies of a particular chromosome instead of the normal two copies.
출처: science.education.nih.gov/supplements/nih1/genetic...
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| trismus |
A firm closing of the jaw due to tonic spasm of the muscles of mastication from disease of the motor branch of the trigeminal nerve. It is usually associated with general tetanus. Also called lockjaw. [Heritage]
출처: www.antiquusmorbus.com/English/EnglishT.htm
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| trisomy |
Having three homologous chromosomes instead of the usual pair within a cell nucleus (eg, trisomy 21).
출처: aspin.asu.edu/geneinfo/glos-t.htm
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| trisomy 13 |
Caused by an extra copy of chromosome 13, which results in multiple internal and external physical defects and severe mental retardation.
출처: aspin.asu.edu/geneinfo/glos-t.htm
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| trisomy 18 |
A congenital disease caused by an extra copy of chromosome 18. Infants with trisomy 18 rarely survive past six months of age due to multiple internal and external physical defects.
출처: aspin.asu.edu/geneinfo/glos-t.htm
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