acoustic

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acoustic

, acoustical
1. of or related to sound, the sense of hearing, or acoustics
2. designed to respond to, absorb, or control sound
3. (of a musical instrument or recording) without electronic amplification

acoustic

[ə′küs·tik]
(acoustics)
Relating to, containing, producing, arising from, actuated by, or carrying sound.

acoustic, acoustical

The qualifying adjectives acoustic and acoustical have the following meanings: arising from, actuated by, containing, producing, or related to sound. In general, acoustic is used when the term being qualified designates something that has the properties, dimensions, or physical characteristics associated with sound waves; acoustical is used when the term being qualified does not explicitly designate something that has the properties, dimensions, or physical characteristics of sound (e.g., acoustical engineering). However, sometimes these two terms are used interchangeably.

acoustic

Associated with sound at frequencies that are audible to human beings.
References in periodicals archive ?
A) Conventional sonography shows moderately obscured margins of the cyst (White arrows) B) Corresponding tissue hormonic image showing well-defined margin and posterior acoustic enhancement of the cystic lesion (White arrows).
Unexpectedly, each polymer set showed a peak zeta potential at the same molecular weight that yielded a peak acoustic enhancement.
Tenders are invited for architectural services for additional accommodation consists of: 1 x 2 classroom 292m2 asd unit 1 x 110m2 science lab with prep area acoustic enhancement in the pe hall.
a) Epidermoid/dermoid cyst: The cyst is usually well-defined and anechoic with posterior acoustic enhancement in a midline position of the neck
Fat necrosis, which presents as an anechoic mass with acoustic enhancement, is indistinguishable from a cyst.