at·mos·pher·ics

[at-muhs-fer-iks, -feer-]
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:
1900–05; see atmospheric, -ics

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
atmospherics (ˌætməsˈfɛrɪks) [Click for IPA pronunciation guide]
 
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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Atmospherics is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
American Heritage
Science Dictionary
atmospherics   (āt'mə-sfîr'ĭks)  Pronunciation Key 
  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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
He swathes his story in atmospherics: no one is without his wreath of cigarette smoke, no recess without its shadowy figure.
Instead, the atmospherics of the anti-terror coalition have been soured.
The audience gave standing ovation after standing ovation despite the awkward atmospherics and stilted banter.
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