infrasonic

adjective
in·​fra·​son·​ic | \ ˌin-frə-ˈsä-nik How to pronounce infrasonic (audio) , -(ˌ)frä- \

Definition of infrasonic

1 : having or relating to a frequency below the audibility range of the human ear
2 : utilizing or produced by infrasonic waves or vibrations

Examples of infrasonic in a Sentence

Recent Examples on the Web The study offers few clues about how terns might do this, but other research suggests some migrating birds detect infrasonic weather signals or observe changing clouds. Joshua Rapp Learn, Scientific American, "Seabirds Anticipate Typhoons to Help Migrations," 1 Oct. 2020 For instance, hot lava flowing down the mountain essentially drained the lava lake at its summit, so there should be a corresponding shift in the infrasonic signature. Jennifer Ouellette, Ars Technica, "Scientists look to music of volcanos to better monitor eruptions," 24 Aug. 2018 These devices usually operate at the ultrasonic level (above audible range) or the infrasonic level (below audible range). Alex Ward, Vox, "What’s happening to US diplomats in Cuba and China? Here are 4 theories.," 8 June 2018 An infrasonic or ultrasonic weapon can cause hearing loss and physical pain by emitting a sound not audible to a human ear within the vicinity of the victim. Casey Quackenbush, Time, "Canada Recalls Families of Diplomats in Cuba Following Mystery Illness," 17 Apr. 2018 Since the 1990s, the US military and private companies researched infrasonic devices that could cause behavior changes at frequencies too low to be audible. Zachary Cohen, CNN, "New audio adds to mystery of attacks on US diplomats," 13 Oct. 2017 To monitor the volcano’s volatility, seismographs, strainmeters, geomagnetometers, infrasonic microphones and water-tube tiltmeters have been placed on the mountain’s slopes and around its 78-mile perimeter. Gilles Mingasson, Smithsonian, "Why Mount Fuji Endures As a Powerful Force in Japan," 2 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infrasonic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of infrasonic

1927, in the meaning defined at sense 1

Keep scrolling for more

Learn More about infrasonic

Time Traveler for infrasonic

Time Traveler

The first known use of infrasonic was in 1927

See more words from the same year

Statistics for infrasonic

Cite this Entry

“Infrasonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infrasonic. Accessed 24 Jan. 2021.

Keep scrolling for more

More Definitions for infrasonic

infrasonic

adjective
in·​fra·​son·​ic | \ -ˈsän-ik How to pronounce infrasonic (audio) \

Medical Definition of infrasonic

1 : having or relating to a frequency below the audibility range of the human ear
2 : utilizing or produced by infrasonic waves or vibrations

Comments on infrasonic

What made you want to look up infrasonic? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!