| TAC | tachykinin; terminal antrum contraction; tetracaine, adrenalin, and cocaine; time-activity curve; to... |
|---|---|
| TCA | T-cell A locus; terminal cancer; tetracyclic antidepressant; total cholic acid; total circulating al... |
| TCC | terminal complement complex; thromboplastic cell component; transitional-cell carcinoma; trichloroca... |
| TCNV | terminal contingent negative variation |
| TD | tabes dorsalis; tardive dyskinesia; T-cell dependent; temporary disability; terminal device; tetanus... |
| terminal ventricle | A dilation of the central canal of the spinal cord at the tip of the medullary cone. Synonym: ventriculus terminalis. (05 Mar 2000) |
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| terminal web | <cell biology> The cytoplasmic region at the base of microvilli in intestinal epithelial cells, a region rich in microfilaments from the microvillar core and from adherens junctions, in myosin and in other proteins characteristic of an actomyosin motor system. (13 Jan 1998) |
| termino-terminal anastomosis | An operation by which the central end of an artery is connected with the peripheral end of the corresponding vein, and the peripheral end of the artery with the central end of the vein. (05 Mar 2000) |
| functional terminal innervation ratio | The number of muscle fibres divided by the number of axons that innervate them. (05 Mar 2000) |
| long-terminal repeat | <molecular biology> Identical DNA sequences, several hundred nucleotides long, found at either end of transposons and the proviral DNA, formed by reverse transcription of retroviral RNA. They are thought to have an essential role in integrating the transposon or provirus into the host DNA. Long terminal repeats have inverted repeats, that is, sequences close to either end are identical when read in opposite directions. In proviruses the upstream long-terminal repeat acts as a promoter and enhancer and the downstream long-terminal repeat as a polyadenylation site. Acronym: LTR (15 Nov 1997) |
| long terminal repeat sequences | Regions of the RNA genome associated with regulation, integration, and expression of retroviruses. (05 Mar 2000) |