Adjacent Words

Acoustic definitions

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Webster's 1828 Dictionary

ACOUS'TIC, a. [Gr. to hear.]
Pertaining to the ears, to the sense of hearing, or to the doctrine of sounds.
Acoustic duct, in anatomy, the meatus auditorius, or external passage of the ear.
Acoustic vessels, in ancient theaters, were brazen tubes or vessels, shaped like ab bell, used to propel the voice of the actors, so as to render them audible to a great distance; in some theaters at the distance of 400 feet.
Acoustic instrument, or auricular tube, called in popular language, a speaking trumpet.
Acoustics, or acousmatics, was a name given to such of the disciples of Pythagoras, as had not completed their five years probation.

WordNet (r) 3.0 (2005)

adj
1: of or relating to the science of acoustics; "acoustic properties of a hall" [syn: acoustic, acoustical] n
1: a remedy for hearing loss or deafness

Merriam Webster's

or acoustical adjective Etymology: Greek akoustikos of hearing, from akouein to hear — more at hear Date: 1605 1. of or relating to the sense or organs of hearing, to sound, or to the science of sounds <acoustic apparatus of the ear> <acoustic energy>: as a. deadening or absorbing sound <acoustic tile> b. operated by or utilizing sound waves 2. of, relating to, or being a musical instrument whose sound is not electronically modified • acoustically adverb

Oxford Reference Dictionary

adj. & n. --adj. 1 relating to sound or the sense of hearing. 2 (of a musical instrument, gramophone, or recording) not having electrical amplification (acoustic guitar). 3 (of building materials) used for soundproofing or modifying sound. 4 Mil. (of a mine) that can be exploded by sound waves transmitted under water. --n. 1 (usu. in pl.) the properties or qualities (esp. of a room or hall etc.) in transmitting sound (good acoustics; a poor acoustic). 2 (in pl.; usu. treated as sing.) the science of sound (acoustics is not widely taught). Phrases and idioms: acoustic coupler Computing a modem which converts digital signals into audible signals and vice versa, so that the former can be transmitted and received over telephone lines. Derivatives: acoustical adj. acoustically adv. Etymology: Gk akoustikos f. akouo hear

Webster's 1913 Dictionary

Acoustic A*cous"tic, n. A medicine or agent to assist hearing.

Webster's 1913 Dictionary

Acoustic A*cous"tic (#; 277), a. [F. acoustique, Gr. ? relating to hearing, fr. ? to hear.] Pertaining 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 to propel the voices of the actors, so as to render them audible to a great distance.

Collin's Cobuild Dictionary

(acoustics) 1. An acoustic guitar or other instrument is one whose sound is produced without any electrical equipment. ADJ: ADJ n • acoustically ...acoustically based music. ADV: oft ADV with cl 2. If you refer to the acoustics or the acoustic of a space, you are referring to the structural features which determine how well you can hear music or speech in it. N-COUNT • acoustically The church is acoustically perfect. ADV: ADV adj 3. Acoustics is the scientific study of sound. 4. Acoustic means relating to sound or hearing. Compare aural. ...acoustic signals. ADJ: ADJ n

Moby Thesaurus

audible, audile, audio, auditory, aural, auricular, hearing, hypersonic, otic, otological, otopathic, otoscopic, phonic, sonic, subsonic, supersonic, transonic, transsonic, ultrasonic