| gamma angle | <ophthalmology> The angle formed between a line joining the fixation point to the centre of the eye and the optic axis. (05 Mar 2000) |
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| gamma-anticollagenase | <chemical> Serum protease inhibitor (26 Jun 1999) |
| gamma benzene hexachloride | <chemical> One of the purified isomers of hexachlorobenzene which is used as a scabicide and pediculicide applied topically to the skin in various lotions, creams, and shampoos; gamma benzene hexachloride can be absorbed through the skin. Resembles DDT in its actions but is less persistent. Incorrect name for 1,2,3,4,5,6-hexachlorocyclohexane (lindane). Synonym: hexachlorocyclohexane. Acronym: GBH (05 Mar 2000) |
| gamma-butyrobetaine | Gamma-(Trimethylammonium) butyric acid;a betaine of gamma-aminobutyric acid; a precursor of carnitine by hydroxylation of the beta-carbon. (05 Mar 2000) |
| gamma camera | Any one of several scintigraphic cameras that records simultaneously counts from the entire operative field of view. Synonym: scintillation camera. (05 Mar 2000) |
| gamma cameras | Electronic instruments that produce photographs or cathode-ray tube images of the gamma-ray emissions from organs containing radionuclide tracers. (12 Dec 1998) |
| gamma cell of pancreas | A cell of the pancreatic islets of the guinea pig. Synonym: gamma cell of pancreas. Synonym: parafollicular cells. (05 Mar 2000) |
| gamma crystallin | The least rapidly mobile form of crystallin on electrophoresis. (05 Mar 2000) |
| gamma-cyanoaminobutyrate synthase | <enzyme> Homocystine + 2cn- yields gamma-cyanobutyric acid + scn-+ homocysteine; pyridoxal-5-phosphate dependent Registry number: EC 4.- (26 Jun 1999) |
| gamma-cystathionase | <enzyme> A multifunctional pyridoxal phosphate enzyme. In the final step in the biosynthesis of cysteine it catalyses the cleavage of cystathionine to yield cysteine, ammonia, and 2-ketobutyrate. Chemical name: L-Cystathionine cysteine-lyase (deaminating) Registry number: EC 4.4.1.1 (12 Dec 1998) |
| gamma efferent | The thin axon of a gamma motor neuron innervating the intrafusal muscle fibres of a muscle spindle. (05 Mar 2000) |
| gamma emission | <physics> Nuclear decay process whereby the nucleus goes from an excited state to a more stable state by emitting a gamma ray. See: gamma ray. (09 Oct 1997) |
| gamma encephalography | Imaging of the encephalon by the administration of small amounts of gamma-emitting radionuclides; commonly called a brain scan; superseded by computed tomography and magnetic resonance imaging. (05 Mar 2000) |
| gamma-endorphin | <chemical> An endogenous opioid peptide derived from the pro-opiomelanocortin precursor peptide. It differs from alpha-endorphin by one amino acid. Chemical name: gamma-Endorphin (12 Dec 1998) |
| gamma fibres | Nerve fibre's that have a conduction rate of about 20 m/sec. See: gamma efferent. (05 Mar 2000) |