| Z-plasty | Surgery to elongate a contracted scar or to rotate tension 90 |
|---|---|
| Z-protein | A fatty acid-binding protein that participates in the intracellular movement of fatty acids. Synonym: fatty acid binding protein. (05 Mar 2000) |
| Z-tract injection | A technique in which the skin and subcutaneous tissue are displaced laterally before inserting the needle intramuscularly; used to prevent leakage along the track of the needle and consequent tissue irritation. (05 Mar 2000) |
| za | <chemical> An old solfeggio name for B flat; the seventh harmonic, as heard in the or aeolian string; so called by Tartini. It was long considered a false, but is the true note of the chord of the flat seventh. Source: Websters Dictionary (01 Mar 1998) |
| zachun | <botany> An oil pressed by the Arabs from the fruit of a small thorny tree (Balanites aegyptiaca), and sold to piligrims for a healing ointment. Source: Websters Dictionary (01 Mar 1998) |
| zaerthe | <zoology> Same as Zarthe. Source: Websters Dictionary (01 Mar 1998) |
| Zaffaroni system | A chromatographic system for the separation of steroids. (05 Mar 2000) |
| Zaffaroni, Alejandro | <person> U.S. Chemist and biochemist, *1923. See: Zaffaroni system. (05 Mar 2000) |
| Zaglas' ligament | <anatomy> A short thick fibrous band extending from the posterior superior spine of the ilium to the second transverse tubercle of the sacrum. (05 Mar 2000) |
| Zaglas, John | <person> 19th century anatomist's assistant in Edinburgh. See: Zaglas' ligament. (05 Mar 2000) |
| Zahn's infarct | A pseudoinfarct of the liver, consisting of an area of congestion with parenchymal atrophy but no necrosis; due to obstruction of a branch of the portal vein. (05 Mar 2000) |
| Zahn, Friedrich | <person> German pathologist, 1845-1904. See: Zahn's infarct, lines of Zahn, striae of Zahn. (05 Mar 2000) |
| zalambdodont | <zoology> Of or pertaining to a tribe (Zalambdodonta) of Insectivora in which the molar teeth have but one V-shaped ridge. Source: Websters Dictionary (01 Mar 1998) |
| zalcitabine | <chemical> A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by a hydrogen. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. The compound is a potent inhibitor of HIV replication at low concentrations, acting as a chain-terminator of viral DNA by binding to reverse transcriptase. Its principal toxic side effect is axonal degeneration resulting in peripheral neuropathy. Pharmacological action: anti-HIV agents, antimetabolites, reverse transcriptase inhibitors. Chemical name: Cytidine, 2',3'-dideoxy- (12 Dec 1998) |
| zamang | <botany> An immense leguminous tree (Pithecolobium Saman) of Venezuela. Its branches form a hemispherical mass, often one hundred and eighty feet across. The sweet pulpy pods are used commonly for feeding cattle. Also called rain tree. Source: Websters Dictionary (01 Mar 1998) |