acous·tic /-stɪkəl/ 形容詞
A·cous·tic a. 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.
A·cous·tic, n. A medicine or agent to assist hearing.
adj : of or relating to the science of acoustics; "acoustic
properties of a hall" [syn: acoustical]
n : a remedy for hearing loss or deafness