infrasonic

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Related to subsonic: subsonic speed

infrasonic

 [in″frah-son´ik]
below the frequency range of sound waves.

in·fra·son·ic

(in'fră-son'ik),
Denoting those frequencies that lie below the range of human hearing.
Synonym(s): subsonic
[infra- + L. sonus, sound]

infrasonic

/in·fra·son·ic/ (-son´ik) below the frequency range of sound waves.

in·fra·son·ic

(in'fră-son'ik)
Denoting those frequencies that lie below the range of human hearing.
[infra- + L. sonus, sound]

infrasonic

below the frequency range of sound waves.
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References in periodicals archive ?
In my rifles, Subsonic Hollowpoint averaged 979 fps and 0.
375 subsonic, and (b) how much performance you will lose, but it's all moot--poachers don't employ sophisticated reloading techniques
The two loads were the 115 grain FMJ, and the 220 OTM, a subsonic load.
Advanced aircraft design; conceptual design, analysis, and optimization of subsonic civil airplanes.
AN historic subsonic jet is coming to Ireland to mark 60 years since it broke the air speed record.
Summary: The French government will provide the Lebanese Army Gazelle helicopters with rocket launchers for French-German anti-tank HOT [High Subsonic Optical Remote-Guided] missiles by the end of July, the Central News Agency reported.
8, which is about three times faster than the US-made subsonic Tomahawk cruise missile.
From then on, there's a relentless barrage of sounds that come in waves, from ambient field recordings to subsonic bass, it's as hypnotic as it is disorienting.
Tom Cowan's gargantuan synth noises delivered a tsunami-like effect on the audience alongside the grind of Rhys Webb's subsonic bass.
Lunev (aero-physics and space research, Moscow Institute of Physics and technology) uses analytically treatable examples, similarity laws and asymptotic analysis to explain the general patterns and features of typical flows and how real gas affects them, providing physics and aerospace students with applications for supersonic and subsonic flight.
Newport News, VA, is being awarded a $27,906,428 IDIQ contract for contractor owned and operated type III High Subsonic and Type IV Supersonic aircraft (approximately 1,099 and 359 flight hours, respectively) in support of the Commercial Air Services (CAS) program for the U.