e|mis|sion

e|mis|sion
e|mis|sion «ih MIHSH uhn», noun.
1. the act or fact of emitting: »

the emission of light from the sun.

2. a thing emitted; discharge: »

It is from these bursts of emission that radio astronomers have obtained most of their new information about the sun's activities (Scientific American). Emissions in all categories—hydrocarbons, carbon monoxide, and oxides of nitrogen—were about 50% less than the standards set by the U.S. Environmental Protection Agency for gasoline engines (Frank A. Smith).

4. Electronics. a) the streaming out of electrons from the heated cathode of a vacuum tube. b) the streaming out of electrons from an electrode subjected to irradiation or to the impact of electrons or ions.
╂[< Latin ēmissiō, -ōnis < ēmittere; see etym. under emit (Cf. ↑emit)]

Useful english dictionary. 2012.

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  • mis|sion|ar|y — «MIHSH uh NEHR ee», noun, plural ar|ies, adjective. –n. 1. a person sent on the work of a religious mission: »the missionary went to Africa to convert people to Christianity. 2. a person who works to advance some cause or idea. 3. Obsolete. an… …   Useful english dictionary

  • mis|sion|ize — «MIHSH uh nyz», verb, ized, iz|ing. –v.i. to send missionaries or missions; establish a religious mission or missions: »All three religions…have been actively missionizing (Alfred L. Kroeber). –v.t. to send missionaries or missions to; convert… …   Useful english dictionary

  • ad|mis|sion — «ad MIHSH uhn», noun. 1. a) the act of allowing (a person, animal, or group) to enter; entrance: »the admission of aliens into a country, the admission of Kentucky as a state into the Union. His admission into the hospital was delayed for lack of …   Useful english dictionary

  • com|mis|sion|al — «kuh MIHSH uh nuhl», adjective. having to do with a commission …   Useful english dictionary

  • com|mis|sion|er — «kuh MIHSH uh nuhr, MIHSH nuhr», noun. 1. an official in charge of some department of a government: »a police commissioner. Our county has both a road commissioner and a commissioner of public health. 2. a member of a commission. 3. one of a… …   Useful english dictionary

  • de|mis|sion — «dih MIHSH uhn», noun. 1. a putting away or letting go; giving up; resignation; abdication. 2. Archaic. a sending away; dismissal. ╂[< Old French demission < desmettre; see etym. under demise (Cf. ↑demise …   Useful english dictionary

  • dis|mis|sion — «dihs MIHSH uhn», noun. = dismissal. (Cf. ↑dismissal) …   Useful english dictionary

  • im|mis|sion — «ihm MIHSH uhn», noun. the act or process of sending or letting in; injection; introduction. ╂[< Latin immissiō, ōnis < immittere; see etym. under immit (Cf. ↑immit)] …   Useful english dictionary

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