infrasound

[ in-fruh-sound ]

noun
  1. sound with frequencies below the audible range.

Origin of infrasound

1
First recorded in 1925–30; infra- + sound1

Words Nearby infrasound

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How to use infrasound in a sentence

British Dictionary definitions for infrasound

infrasound

/ (ˈɪnfrəˌsaʊnd) /


noun
  1. soundlike waves having a frequency below the audible range, that is, below about 16Hz

Derived forms of infrasound

  • infrasonic (ˌɪnfrəˈsɒnɪk), adjective

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

Scientific definitions for infrasound

infrasound

[ ĭnfrə-sound′ ]


  1. Sound whose wave frequency is too low (under 15-20 hertz) to be heard by humans. Some animals, such as elephants and whales, emit calls at infrasound frequencies. See Note at ultrasound.

Other words from infrasound

  • infrasonic adjective

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