infrasonic Hear it!

infrasonic definition

infra·sonic (in′frə sän′ik)

adjective

designating or of a frequency of mechanical vibrations below the range audible to the human ear, i.e., below c. sixteen vibrations per second

Etymology: infra- + sonic

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.