| tera | <physics> A prefix used in the SI and metric systems to signify one trillion (10^12) times base unit. Origin: G. Teras, monster (21 Jun 2000) |
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| teraconic | <chemistry> Pertaining to, or designating, an acid obtained by the distillation of terebic acid, and homologous with citraconic acid. Origin: Terebic + citraconic. Source: Websters Dictionary (01 Mar 1998) |
| teracrylic | <chemistry> Of, pertaining to, or designating, an acid of the acrylic series, obtained by the distillation of terpenylic acid, as an only substance having a peculiar cheesy odour. Origin: Terpene + acrylic. Source: Websters Dictionary (01 Mar 1998) |
| terapin | <zoology> See Terrapin. Source: Websters Dictionary (01 Mar 1998) |
| teras | Foetus with deficient, redundant, misplaced, or grossly misshapen parts. Origin: G. (05 Mar 2000) |
| teratic | Relating to a teras. (05 Mar 2000) |
| teratism | Synonym: teratosis. Origin: G. Teratisma, fr. Teras (05 Mar 2000) |
| terato- | A teras. See: tera-. Origin: G. Teras, monster (05 Mar 2000) |
| teratoblastoma | <tumour> A tumour containing embryonic tissue differing from a teratoma in that not all germ layers are present. (05 Mar 2000) |
| teratocarcinoma | <oncology, tumour> Malignant tumour (teratoma) thought to originate from primordial germ cells or misplaced blastomeres that contains tissues derived from all three embryonic layers, such as bone, muscle, cartilage, nerve, tooth buds and various glands. Accompanied by undifferentiated, pluripotent epithelial cells known as embryonal carcinoma cells. (16 Dec 1997) |
| teratogen | <pharmacology, obstetrics> An agent capable of causing malformations in embryos. Notorious example is thalidomide. See: teratogenicity (18 Nov 1997) |
| teratogenesis | The origin or mode of production of a malformed foetus; the disturbed growth processes involved in the production of a malformed neonate. Origin: terato-+ G. Genesis, origin (05 Mar 2000) |
| teratogenic | <pharmacology, obstetrics> Tending to produce anomalies of formation or teratism (= anomaly of formation or development: condition of a monster). See: teratogenicity Origin: Gr. Gennan = to produce (18 Nov 1997) |
| teratogenicity | <pharmacology> The ability to cause defects in a developing foetus. This is distinct from mutagenicity, which causes genetic mutations in sperms, eggs or other cells. Teratogenicity is a potential side effect of many drugs, such as thalidomide. (09 Oct 1997) |
| teratogens | An agent that causes the production of physical defects in the developing embryo. (12 Dec 1998) |