infrasound

[ in-fruh-sound ]

/ ˈɪn frəˌsaʊnd /

Save This Word!

noun

sound with frequencies below the audible range.

QUIZ

WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?

Smoothly step over to these common grammar mistakes that trip many people up. Good luck!

Question 1 of 7

Fill in the blank: I can’t figure out _____ gave me this gift.

who

whom

TAKE THE QUIZ TO FIND OUT

Origin of infrasound

First recorded in 1925–30; infra- + sound¹

Words nearby infrasound

infrared radiation, infrared star, infrared telescope, infrasonic, infrasonics, infrasound, infraspecific, infrastructure, infrequency, infrequent, infringe

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use infrasound in a sentence

Infrasound is used to indicate when an explosion has occurred, but the technique doesn’t differentiate between ash versus gas in eruptions.
Invisible bursts of electricity from volcanoes signal explosive eruptions|Alka Tripathy-Lang|July 1, 2021|Science News

British Dictionary definitions for infrasound

infrasound

/ (ˈɪnfrəˌsaʊnd) /

noun

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

[ ĭn′frə-sound′ ]

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