BACK TO subsonic
subsonic vs. supersonic
[ suhb-son-ik ]
adjective
- noting or pertaining to a speed less than that of sound in air at the same height above sea level.
- infrasonic.
[ soo-per-son-ik ]
adjective
- greater than the speed of sound waves through air.
- capable of achieving such speed: a supersonic plane.
- ultrasonic.