'Harmonometer' definitions:

Definition of 'Harmonometer'

From: GCIDE

Harmonometer \Har`mo*nom"e*ter\ (-n[o^]m"[-e]*t[~e]r), n. [Gr. "armoni`a harmony + meter: cf. F. harmonometre.] An instrument for measuring the harmonic relations of sounds. It is often a monochord furnished with movable bridges. [1913 Webster]