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infrasonics

[in-fruh-son-iks] /ˌɪn frəˈsɒn ɪks/
noun, (used with a singular verb)
1.
the branch of science that deals with infrasonic phenomena.
Origin
1965-1970
1965-70; see infrasonic, -ics
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for infrasonics
  • infrasonics is the study of sound below the range of human hearing.
Encyclopedia Article for infrasonics

vibrational or stress waves in elastic media, having a frequency below those of sound waves that can be detected by the human ear-i.e., below 20 hertz. The range of frequencies extends down to geologic vibrations that complete one cycle in 100 seconds or longer.

Learn more about infrasonics with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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