To*nom"e*ter (?), n. [Gr. &?; a stretching, a
tone + -meter.] 1. (Physics.) An
instrument for determining the rate of vibrations in tones.
2. (Physiol.) (a) An
apparatus for studying and registering the action of various fluids and
drugs on the excised heart of lower animals. (b)
An instrument for measuring tension, esp. that of the
eyeball.
To*nom"e*ter (?), n. [Gr. &?; a stretching, a
tone + -meter.] 1. (Physics.) An
instrument for determining the rate of vibrations in tones.
2. (Physiol.) (a) An
apparatus for studying and registering the action of various fluids and
drugs on the excised heart of lower animals. (b)
An instrument for measuring tension, esp. that of the
eyeball.
