infrasound

C2+ Topic:People & Society

Also spelled infra-sound

US /ˈɪnfrəˌsaʊnd/ UK /ˈɪnfrəˌsaʊnd/ See IPA manual

Freq #78000

Meanings

1

noun
sound waves having a frequency below the human audible range (below about 20 Hz).

"Was it infra-sound?

Thesaurus

Opposites

ultrasound

Etymology

Formed from infra- ("below") + sound, referring to frequencies below the lower limit of ordinary human hearing.

Topics

People & Society

External links

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