| emission | 1. The act of sending or throwing out; the act of sending forth or putting into circulation; issue; as, the emission of light from the sun; the emission of heat from a fire; the emission of bank notes. 2. That which is sent out, issued, or put in circulation at one time; issue; as, the emission was mostly blood. 3. <physics> Emission theory, the theory of Newton, regarding light as consisting of emitted particles or corpuscles. See Corpuscular theory. Origin: L. Emissio: cf. F. Emission. Source: Websters Dictionary (01 Mar 1998) |
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| emission electron | <physics>? A beta particle resulting from radioactive decay. (05 Mar 2000) |
| emission offset | <chest medicine> A reduction in the air pollution emissions of existing sources to compensate for emissions from new sources. (05 Dec 1998) |
| emission standard | This regulatory value is a quantitative limit on the emission or discharge of a potentially toxic substance from a source. The simplest form for regulatory purposes is a uniform emission standard (UES) where the same limit is placed on all emissions of a particular contaminant. (09 Oct 1997) |
| emission-computed tomography | <radiology> Tomography using emissions from radionuclides and a computer algorithm to reconstruct the image. (20 Jun 2000) |
| emissivity | <physics> The giving off of heat rays; a perfect black body has an emissivity of 1, a highly polished metallic surface may have an emissivity as low as 0.02. (05 Mar 2000) |
| emissory | 1. Exploring; spying. 2. <anatomy> Applied to the veins which pass out of the cranium through apertures in its walls. Source: Websters Dictionary (01 Mar 1998) |
| EMIT | <abbreviation> Enzyme-multiplied immunoassay technique. (05 Mar 2000) |
| emitter | <physics, radiobiology> A radionuclide whose decay is accompanied by the emission of beta particles, most commonly negatively charged electrons. Many isotopes used in biology, such as 3H, 14C, 35S and 32P are pure beta emitters. (18 Nov 1997) |
| emmenagogic | Relating to or acting as an emmenagogue. (05 Mar 2000) |
| emmenagogue | <pharmacology> A medicine that promotes the menstrual discharge. Origin: Gr, n. Pl, menses (in + month) + leading, fr. To lead: cf. F. Emmenagogue. Source: Websters Dictionary (01 Mar 1998) |
| emmenia | Synonym: menses. Origin: G. Emmenos, monthly (05 Mar 2000) |
| emmenic | Relating to the menses. Synonym: catamenial, emmenic. Origin: L. Menstrualis (05 Mar 2000) |
| emmeniopathy | <gynaecology> Any disorder of menstruation. Origin: G. Emmenos, monthly, + pathos, suffering (05 Mar 2000) |
| emmenology | <study> An obsolete term for the branch of medicine concerned with the physiology and pathology of menstruation. Origin: G. Emmenos, monthly, + logos, study (05 Mar 2000) |