# supersonic

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## su·per·son·ic

(sū'pĕr-son'ik),
1. Pertaining to or characterized by a speed greater than the speed of sound.
2. Pertaining to sound vibrations of high frequency, above the level of human audibility.
[super- + L. sonus, sound]

## su·per·son·ic

(sū'pĕr-son'ik)
1. Pertaining to or characterized by a speed greater than the speed of sound.
2. Pertaining to sound vibrations of high frequency, above the level of human audibility.
[super- + L. sonus, sound]

## supersonic

(soo″pĕr-sŏn′ĭk) [″ + sonus, sound]
1. Ultrasonic.
2. Used to describe speeds greater than that of sound. At sea level, in air at 0°C, the speed of sound is about 331 m, or 1087 ft per second (741 mph).
3. A sound frequency that is greater than 20,000 cycles per second.
References in periodicals archive ?
Bullets and shells can move faster than sound, as can the tip of a bullwhip.
Children want to learn at a speed faster than sound and with vagaries.
Light travels faster than sound - this is why some people appear bright until you hear them speak.
If a ship off the Falklands was fitted with Sea Ceptor it could obliterate an incoming enemy missile by travelling at Mach 3, faster than sound, and intercepting it.
That's faster than sound, which is why you see lightning before you hear thunder.
On average, the jets travel three times faster than sound.
Just as the tip of a whip produces a cracking sound when it travels faster than sound, a dino's 1,590-kg (3,500-lb) tail would have thundered, producing a supersonic boom.
A reader sent me this list of Murphy's Lesser Known Laws which takes the premise to new conclusions: Light travels faster than sound.
It may take a few more seconds to reach you because light travels so much faster than sound.
We sezlightning before we hear thunder because light travels almost a million times faster than sound.
P Light travels faster than sound which is why some people seem bright until you hear them speak.

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