sonar

[ soh-nahr ]

/ ˈsoʊ nɑr /

SEE SYNONYMS FOR sonar ON THESAURUS.COM

noun

a method for detecting and locating objects submerged in water by echolocation.

the apparatus used in sonar.

Also called, British, asdic.

Origin of sonar

1940–45; so(und)na(vigation)r(anging)

Words nearby sonar

somy, son, sonal, sonance, sonant, sonar, sonarman, sonata, sonata da camera, sonata da chiesa, sonata form

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for sonar

Before that, in December 2011, it won a $691 million U.S. Navy subcontract for “combat and sonar systems” for submarines.
Assad Supplier Finmeccanica Did Business With the Pentagon|Aram Roston|July 9, 2012|DAILY BEAST
He adjusted the sonar pickups, turned the amplifier to maximum, and listened intently.
Way of a Rebel|Walter M. Miller
The tyme of hir purificatioun was sonar then the Leviticall law appointes.
The Works of John Knox, Vol. 1 (of 6)|John Knox
He listened for code on the sonar equipment, but heard only the weird and nameless sea-sounds.
Way of a Rebel|Walter M. Miller

The sonar equipment showed what kind of rock it was—iron and basalt.
The Minus Woman|Russell Robert Winterbotham
It would consist of attaching hundreds of mikes and speakers all over the hull to pick up and transmit the sonar pulses.
Tom Swift and the Electronic Hydrolung|Victor Appleton

British Dictionary definitions for sonar

sonar

/ (ˈsəʊnɑː) /

noun

a communication and position-finding device used in underwater navigation and target detection using echolocation

Word Origin for sonar

C20: from so (und) na (vigation and) r (anging)

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 sonar

sonar

[ sō′när′ ]

Short for sound navigation and ranging. A method of detecting, locating, and determining the speed of objects through the use of reflected sound waves. A sound signal is produced, and the time it takes for the signal to reach an object and for its echo to return is used to calculate the object's distance. The Doppler effect can also be used to determine the object's relative velocity. Electronic sonar systems are used for submarine navigation and for detecting schools of fish. Some mammals, especially bats, use biological sonar to navigate and detect prey in dark conditions, commonly called echolocation.

The equipment or physiology used in doing this. See also Doppler effect lidar radar.

单词	sonar
释义	sonar [ soh-nahr ] / ˈsoʊ nɑr / SEE SYNONYMS FOR sonar ON THESAURUS.COM noun a method for detecting and locating objects submerged in water by echolocation. the apparatus used in sonar. Also called, British, asdic. Origin of sonar 1940–45; so(und)na(vigation)r(anging) Words nearby sonar somy, son, sonal, sonance, sonant, sonar, sonarman, sonata, sonata da camera, sonata da chiesa, sonata form Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for sonar Before that, in December 2011, it won a $691 million U.S. Navy subcontract for “combat and sonar systems” for submarines. Assad Supplier Finmeccanica Did Business With the Pentagon\|Aram Roston\|July 9, 2012\|DAILY BEAST He adjusted the sonar pickups, turned the amplifier to maximum, and listened intently. Way of a Rebel\|Walter M. Miller The tyme of hir purificatioun was sonar then the Leviticall law appointes. The Works of John Knox, Vol. 1 (of 6)\|John Knox He listened for code on the sonar equipment, but heard only the weird and nameless sea-sounds. Way of a Rebel\|Walter M. Miller The sonar equipment showed what kind of rock it was—iron and basalt. The Minus Woman\|Russell Robert Winterbotham It would consist of attaching hundreds of mikes and speakers all over the hull to pick up and transmit the sonar pulses. Tom Swift and the Electronic Hydrolung\|Victor Appleton British Dictionary definitions for sonar sonar / (ˈsəʊnɑː) / noun a communication and position-finding device used in underwater navigation and target detection using echolocation Word Origin for sonar C20: from so (und) na (vigation and) r (anging) 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 Words related to sonar sight, radar, periscope, viewfinder, bombsight, direction finding, tracking system, telescopic sight, homing device Scientific definitions for sonar sonar [ sō′när′ ] Short for sound navigation and ranging. A method of detecting, locating, and determining the speed of objects through the use of reflected sound waves. A sound signal is produced, and the time it takes for the signal to reach an object and for its echo to return is used to calculate the object's distance. The Doppler effect can also be used to determine the object's relative velocity. Electronic sonar systems are used for submarine navigation and for detecting schools of fish. Some mammals, especially bats, use biological sonar to navigate and detect prey in dark conditions, commonly called echolocation. The equipment or physiology used in doing this. See also Doppler effect lidar radar. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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sonar

noun

Origin of sonar

Words nearby sonar

Example sentences from the Web for sonar

British Dictionary definitions for sonar

noun

Word Origin for sonar

Words related to sonar

Scientific definitions for sonar