Pronunciation: (at"mus-fer'iks, -fēr'-), [key]
1. (used with a pl. v.) Radio and Television.noise in a radio receiver or randomly distributed white spots or bands on the screen of a television receiver, caused by interference from natural electromagnetic disturbances in the atmosphere.
2. (used with a sing. v.) the study of such phenomena; sferics.
3. (used with a pl. v.) mood or atmosphere; ambience: The atmospherics of the conference were cordial.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.