| tachygraphical | Of or pertaining to tachygraphy; written in shorthand. Origin: Cf. F. Tachygraphique. Source: Websters Dictionary (01 Mar 1998) |
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| tachygraphy | The art or practice of rapid writing; shorthand writing; stenography. Origin: Gr. Quick: cf. F. Tachygraphie. Source: Websters Dictionary (01 Mar 1998) |
| tachykinin | Any member of a group of polypeptides, widely scattered in vertebrate and invertebrate tissues, that have in common four of the five terminal amino acids: Phe-Xaa-Gly-Leu-Met-NH2; pharmacologically, they all cause hypotension in mammals, contraction of gut and bladder smooth muscle, and secretion of saliva. Origin: G. Tachys, swift, + kineo, to move, + -in (05 Mar 2000) |
| tachykinins | A family of biologically active peptides sharing a common conserved c-terminal sequence, -phe-x-gly-leu-met-nh2, where x is either an aromatic or a branched aliphatic amino acid. Members of this family have been found in mammals, amphibians, and mollusks. Tachykinins have diverse pharmacological actions in the central nervous system and the cardiovascular, genitourinary, respiratory, and gastrointestinal systems, as well as in glandular tissues. This diversity of activity is due to the existence of three or more subtypes of tachykinin receptors. (12 Dec 1998) |
| tachylalia | Rarely used term for tachylogia. Origin: tachy-+ G. Lalia, talking (05 Mar 2000) |
| tachylogia | Rarely used term for rapid or voluble speech. Synonym: tachyphasia, tachyphemia, tachyphrasia. Origin: tachy-+ G. Logos, word (05 Mar 2000) |
| tachylyte | <chemical> A vitreous form of basalt; so called because decompposable by acids and readily fusible. Origin: Gr. Quick + to dissolve. Source: Websters Dictionary (01 Mar 1998) |
| tachypacing | Rapid pacing of the heart by an artificial electronic pacemaker operating faster than the basic cardiac rate. (05 Mar 2000) |
| tachyphagia | Rarely used term for rapid eating; bolting of food. Origin: tachy-+ G. Phago, to eat (05 Mar 2000) |
| tachyphasia | Synonym: tachylogia. Origin: tachy-+ G. Phasis, speaking (05 Mar 2000) |
| tachyphemia | Synonym: tachylogia. Origin: tachy-+ G. Pheme, speech (05 Mar 2000) |
| tachyphrasia | Synonym: tachylogia. Origin: tachy-+ G. Phrasis, speaking (05 Mar 2000) |
| tachyphylaxis | 1. <immunology> The rapid immunisation against the effect of toxic doses of an extract or serum by previous injection of small doses. 2. <pharmacology> The rapidly decreasing response to a drug or physiologically active agent after administration of a few doses. Origin: Gr. Phylaxis = protection (16 Dec 1997) |
| tachypnea | An abnormally rapid (usually shallow) respiratory rate. The normal resting adult respiratory rate is 12-20 breaths/minute. (27 Sep 1997) |
| tachyrhythmia | Synonym: tachycardia. Origin: tachy-+ G. Rhythmos, rhythm (05 Mar 2000) |