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Definition of optoacoustic in English:

optoacoustic

Pronunciation /ˌɒptəʊəˈkuːstɪk/

adjective

Physics

  • Of or relating to both light and sound; specifically designating or relating to an effect whereby a light beam periodically interrupted at an audio frequency produces an audible sound when made to irradiate an enclosed body of gas; photoacoustic.

Origin

1970s; earliest use found in Journal of Applied Physics. From opto- + acoustic.