acous·to-optic
| \ ə¦küstō + \
variants:
or less commonly acousto-optical \
" +
\
Definition of acousto-optic
: of or relating to the use of ultrasound to modulate or change the direction of light in solids
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Merriam-Webster unabridged
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Time Traveler for acousto-optic
The first known use of acousto-optic was in 1961
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