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Webster 1913 Edition
Acoustics
A-cous′tics
(#; 277)
, Noun.
[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 1828 Edition
Acoustics
ACOUS'TICS
,Noun.
1.
The science of sounds, teaching their cause, nature and phenomena. This science is, by some writers, divided into diacoustics, which explains the properties of sounds coming directly from the sonorous body to the ear; and catacoustics, which treats of reflected sounds. But the distinction is considered of little real utility.2.
In medicine, this term is sometimes used for remedies for deafness, or imperfect hearing.