| gag | 1. To retch; to cause to retch or heave. 2. To prevent from talking. 3. An instrument adjusted between the teeth to keep the mouth from closing during operations in the mouth or throat. (05 Mar 2000) |
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| gag protein | <molecular biology> The protein of the nucleocapsid shell around the RNA of a retrovirus. (18 Nov 1997) |
| gag reflex | Contact of a foreign body with the mucous membrane of the fauces causes retching or gagging. Synonym: faucial reflex. (05 Mar 2000) |
| gage | 1. A measure; a standard of measure; an instrument to determine dimensions, distance, or capacity; a standard. "This plate must be a gauge to file your worm and groove to equal breadth by." (Moxon) "There is not in our hands any fixed gauge of minds." (I. Taylor) 2. Measure; dimensions; estimate. "The gauge and dimensions of misery, depression, and contempt." (Burke) 3. <machinery> Any instrument for ascertaining or regulating the dimensions or forms of things; a templet or template; as, a button maker's gauge. To measure the dimensions of, or to test the accuracy of the form of, as of a part of a gunlock. "The vanes nicely gauged on each side." (Derham) 4. <physics> Any instrument or apparatus for measuring the state of a phenomenon, or for ascertaining its numerical elements at any moment; usually applied to some particular instrument; as, a rain gauge; a steam gauge. 5. Relative positions of two or more vessels with reference to the wind; as, a vessel has the weather gauge of another when on the windward side of it, and the lee gauge when on the lee side of it. The depth to which a vessel sinks in the water. 6. The distance between the rails of a railway. The standard gauge of railroads in most countries is four feet, eight and one half inches. Wide, or broad, gauge, in the United States, is six feet; in England, seven feet, and generally any gauge exceeding standard gauge. Any gauge less than standard gauge is now called narrow gauge. It varies from two feet to three feet six inches. 7. The quantity of plaster of Paris used with common plaster to accelerate its setting. 8. To measure the capacity, character, or ability of; to estimate; to judge of. "You shall not gauge me By what we do to-night." (Shak) 9. That part of a shingle, slate, or tile, which is exposed to the weather, when laid; also, one course of such shingles, slates, or tiles. Gauge of a carriage, car, etc, the distance between the wheels; ordinarily called the track. Gauge cock, a stop cock used as a try cock for ascertaining the height of the water level in a steam boiler. Gauge concussion, an instrument for measuring the diameter of the bore of a cannon at any point of its length. Steam gauge, an instrument for measuring the pressure of steam, as in a boiler. Tide gauge, an instrument for determining the height of the tides. Vacuum gauge, a species of barometer for determining the relative elasticities of the vapor in the condenser of a steam engine and the air. Water gauge. A contrivance for indicating the height of a water surface, as in a steam boiler; as by a gauge cock or glass. The height of the water in the boiler. Wind gauge, an instrument for measuring the force of the wind on any given surface; an anemometer. Wire gauge, a gauge for determining the diameter of wire or the thickness of sheet metal; also, a standard of size. Origin: Written also gage. (20 Mar 1998) |
| gagging | Contraction of the constrictor muscle of the pharynx elicited by stimulation of sensory receptors on the soft palate, by psychic stimuli, or systemically by drugs. (12 Dec 1998) |
| gaggle | <zoology> A flock of wild geese. Origin: Cf. Gaggle. Source: Websters Dictionary (01 Mar 1998) |
| gene products, gag | Proteins coded by the retroviral gag gene. The products are usually synthesised as protein precursors or polyproteins, which are then cleaved by viral proteases to yield the final products. Many of the final products are associated with the nucleoprotein core of the virion. Gag is short for group-specific antigen. (12 Dec 1998) |
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| genes, gag | DNA sequences that form the coding region for proteins associated with the viral core in retroviruses. Gag is short for group-specific antigen. (12 Dec 1998) |
| Davis-Crowe mouth gag | Instrument used for opening the mouth, depressing the tongue, maintaining the airway, and transmitting volatile anaesthetics during tonsillectomy or oropharyngeal surgery. (05 Mar 2000) |
| oncogene protein p65(gag-jun) | Transforming protein coded by jun oncogenes (genes, jun). This is a gag-onc fusion protein of about 65 kD derived from avian sarcoma virus. V-jun lacks a negative regulatory domain that regulates transcription in c-jun. (12 Dec 1998) |
| fusion proteins, gag-onc | General name for the translation products of a fusion mRNA consisting of a gag gene and a viral oncogene (v-onc). These products are thought to have the ability to transform cells. (12 Dec 1998) |
| fusion proteins, gag-pol | Polyprotein products of a fused portion of retroviral mRNA containing the gag and pol genes. The polyprotein is synthesised only five percent of the time since pol is out of frame with gag, and is generated by ribosomal frameshifting. (12 Dec 1998) |