acoustic

adjective

acous·​tic ə-ˈkü-stik 

variants or acoustical

ə-ˈkü-sti-kəl 

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

: such 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

ə-ˈkü-sti-k(ə-)lē 

adverb

Synonyms

• audial
• audile
• auditory
• aural
• auricular

Examples of acoustic in a Sentence

the acoustic properties of a room

She loves listening to acoustic folk music.

an acoustic performance of a rock-and-roll song

Recent Examples on the Web

The traditional acoustic piano (think Steinway) has provided an impetus for a number of Based Upon’s one-off grand-piano commissions, as well as forays into smaller versions, like an edition of five pianos called The Baby, designed in partnership with Steinway & Sons. —Robert Ross, Robb Report, 17 July 2024

On Thursday, for a period of just hours, Swift released three digital variants, each including one separate live-from-Stockholm acoustic track as a bonus on top of the standard-edition tracklist, for $4.99 each. —Chris Willman, Variety, 14 July 2024

The melody begins as an acoustic ballad with soft guitar chords, and gradually transforms into a vibrant Latin pop. —Griselda Flores, Billboard, 12 July 2024

In a recent interview with Rolling Stone, Anastasio spoke about writing the songs and testing them out live during Phish shows, Trey Anastasio Band shows, and even some of his own solo acoustic performances. —Jon Blistein, Rolling Stone, 12 July 2024

Word History

Etymology

acoustic borrowed from Medieval Latin acousticus, acūsticus, borrowed from Greek akoustikós, from akoustós "heard, audible" (verbal adjective of akoúein "to hear," going back to Indo-European h₂kous-) + -ikos -ic entry 1; acoustical from acoustic + -al entry 1 — more at hear

First Known Use

1635, in the meaning defined at sense 1

Phrases Containing acoustic

• acoustic emission

Kids Definition

acoustic

adjective

acous·​tic ə-ˈkü-stik 

variants or acoustical

-sti-kəl 

1

: of or relating to the sense or organs of hearing, to sound, or to the science of sounds: as

a

: deadening or absorbing sound

b

: operated by or using sound waves

2

: of, relating to, or being a musical instrument whose sound is not electronically modified

acoustic guitar

acoustically

-sti-k(ə-)lē 

adverb

Medical Definition

acoustic

adjective

acous·​tic ə-ˈkü-stik 

variants or acoustical

-sti-kəl 

: 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

acoustically

-k(ə-)lē 

adverb