a·cous·tic
adjective/əˈkuːstɪk/
/əˈkuːstɪk/
(North American English also acoustical
/əˈkuːstɪkl/
/əˈkuːstɪkl/
)- related to sound or to the sense of hearing
声音的;音响的;听觉的 - [usually before noun] (of a musical instrument or performance) designed to make natural sound, not sound amplified (= made louder) by electrical equipment
Topics Musicc1原声的;自然声的
Word Originmid 17th cent.: from Greek akoustikos, from akouein ‘hear’.