| T90 | time required for 90% mortality in a population of microorganisms exposed to a toxic agent |
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| VA | vacuum aspiration; valproic acid; vasodilator agent; ventricular aneurysm; ventricular arrhythmia; v... |
| VIA | virus inactivating agent; virus infection-associated antigen |
| VLA | very late activation [antigen or protein]; virus-like agent |
| AFP | Alpha(α) Feto-Protein [HP 1826, 1858, 1859, 2265] ; Oncofetal Antigens &nbs... |
| uncoupling agent | <chemistry> A chemical that breaks the electron transport chain during key biological processes (for example, photosynthesis, phosphorylation). (09 Oct 1997) |
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| fertility agent | The prototype conjugative plasmid associated with conjugation in the K-12 strain of Escherichia coli. Synonym: F agent, F-factor, F genote, F-genote, fertility agent, fertility factor, sex factor. (05 Mar 2000) |
| uricosuric agent | <pharmacology> Gout suppressants that act directly on the renal tubule to increase the excretion of uric acid, thus reducing its concentrations in plasma. (12 Dec 1998) |
| fibrinolytic agent | Fibrinolysin or agents that convert plasminogen to fibrinolysin. They may be endogenous or exogenous like the bacterial enzymes used in thromboembolism. (12 Dec 1998) |
| LDH agent | A species of RNA virus, probably an arterivirus, occurring in a number of transplantable mouse tumours. Infected mice have permanently elevated serum levels of lactate dehydrogenase. (12 Dec 1998) |
| luting agent | A fastening material or cement; e.g., plaster or wax to hold casts to an articulator, or material to hold crowns to teeth. (05 Mar 2000) |