A*cous"tics [Names of sciences in -ics, as, acoustics, mathematics, etc., are usually treated as singular. See -ics.] Physics.

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.

⇒ The science is, by some writers, divided, into diacoustics, which explains the properties of sounds coming directly from the ear; and catacoustica, which treats of reflected sounds or echoes.


© Webster 1913.

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