noun
a combining form meaning 'hearing' or 'sound'
adjective
relating to the sense of hearing or the transmission of sound
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The acousto-optic effect is a phenomenon in which light is diffracted by sound waves.
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I love going to acousto-electric concerts because the sound quality is amazing.
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The acousto-guitar he plays is so cool, it has such a unique sound.
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Her words had an acousto-effect on him, resonating deeply in his heart.