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ining to the sense of hearing, the organs of hearing, or the science of sounds; auditory. Acoustic duct, the auditory duct, or external passage of the ear. -- Acoustic telegraph, a telegraph making audible signals; a telephone. -- Acoustic vessels, brazen tubes or vessels, shaped like a bell, used in ancient theaters…

Of or pertaining to acoustics.

In relation to sound or to hearing. Tyndall.

One versed in acoustics. Tyndall.

The science of sounds, teaching their nature, phenomena, and laws. Acoustics, then, or the science of sound, is a very considerable branch of physics. Sir J. Herschel.

That part of acoustics which treats of reflected sounds or echoes See Acoustics. Hutton.

Pertaining to the science or doctrine of refracted sounds.

ected by passing through different mediums; -- called also diaphonics. See the Note under Acoustics.

Same as Microustic.

Assisting the sense of hearing; as, an otacoustic instrument.

An instrument to facilitate hearing, as an ear trumpet.

A polyacoustic instrument.

The art of multiplying or magnifying sounds.

Of or relating to cataphonics; catacoustic.

That branch of acoustics which treats of reflested sounds; catacoustics.

Diacoustic.

The doctrine of refracted sound; diacoustics.

. A suffix used in forming the names of certain sciences, systems, etc., as acoustics, mathematics, dynamics, statistics, politics, athletics.

resistance of conducting bodies, especially of imperfect conductors, under the action of acoustic vibrations.

Of or pertaining to sound; of the nature of sound; acoustic. Tyndall.