The Collaborative International Dictionary
Acoumeter
Acoumeter \A*cou"me*ter\, n. [Gr. ? to hear + -meter.]
(Physics.)
An instrument for measuring the acuteness of the sense of
hearing.
--Itard.
Wiktionary
acoumeter
n. (context physics English) An instrument for measuring the acuteness of the sense of hearing.