English
acoustooptics
From acousto- + optics.
A compound of acousto- + optics
Proto-Indo-European *h₂ew- ‘to enjoy’
…
Ancient Greek ἀκούω ‘to hear’
Ancient Greek ᾰ̓κουστῐκός ‘of or for hearing’
Medieval Latin acousticus
English acoustic
English acousto-
Proto-Indo-European *h₃ekʷ- ‘to see’
Ancient Greek ὄψ ‘eye’
Ancient Greek ὄψις ‘view’
Ancient Greek ὀπτικός ‘optic, optical, visual’
Medieval Latin opticus ‘optic, optical’
English optics
Today it means
noun The science that studies the diffraction of light by ultrasonic sound.
Language periods are conventional ranges, not dates for this word.
Etymograph / acoustooptics