| 单词 | acoustical |
| 释义 | acoustical, a.|əˈkuː-, əˈkaʊstɪkəl|
[f. acoustic a. and n. + -al1.]
1. a. Of or pertaining to the science of acoustics. acoustical impedance, see impedance.
1831Faraday Exp. Res. xlvi. 314 On a peculiar class of acoustical figures: and on certain forms assumed by groups of particles upon vibrating elastic surfaces. 1859Dickens T. Two Cities 65 Such a curious corner in its acoustical properties, such a peculiar Ear of a place. 1871Earle Philol. Eng. Tongue §109 The acoustical study of the organs of speech. 1877Tyndall in Daily News 2 Oct. 2/5 Does it describe an optical and acoustical fact, a visible host, an audible song?
b. = acoustic A. 2.
1932P. E. Sabine Acoustics & Archit. ix. 192 The application of one of the more highly absorbent of the acoustical plasters..would have been a natural means of securing the desired reverberation time. Ibid. x. 228 A number of acoustical materials were investigated, both as to the viability of bacteria within them and as to the possibilities of adequately disinfecting them.
2. Promoting hearing.
a1845Hood T. of Trumpet xxv, For the Aurist only took a mug, And pour'd in his ear some acoustical drug. |
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