Skip to Content


Pronunciation: in'fra-son'ik

Definition: Denoting those frequencies that lie below the range of human hearing.

Synonym(s): subsonic

[infra- + L. sonus, sound]

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.