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atmospherics

[at-muh s-fer-iks, -feer-]
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noun
  1. (used with a plural verb) 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 singular verb) the study of such phenomena; sferics.
  3. (used with a plural verb) mood or atmosphere; ambience: The atmospherics of the conference were cordial.

Origin of atmospherics

First recorded in 1900–05; see origin at atmospheric, -ics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for atmospherics

atmospherics

pl n
  1. electrical disturbances produced in the atmosphere by natural causes such as lightning
  2. radio interference, heard as crackling or hissing in receivers, caused by electrical disturbance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

atmospherics in Science

atmospherics

[ăt′mə-sfîrĭks]
  1. Electromagnetic radiation that is in the same range as radio frequencies and is produced by natural phenomena (such as lightning) and interferes with radio communications.
  2. The radio interference produced by this electromagnetic radiation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.