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]
n. [ Gr. &unr_; of one meter; mo`nos single + &unr_; measure. ] A rhythmic series, consisting of a single meter. [ 1913 Webster ]
n. [ See Pneumo-, and -meter. ] (Physiol.) A spirometer; a pneumometer. [ 1913 Webster ]