Infrasound definition

ĭnfrə-sound
A wave phenomenon sharing the physical nature of sound but with a range of frequencies below that of human hearing.
noun
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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.
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(physics) Sound waves having frequency below the human audible range (below about 20 Hz).
noun
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Other Word Forms

Noun

Singular:
infrasound
Plural:
infrasounds

Origin of infrasound

  • infra- +"Ž sound

    From Wiktionary