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optical double star
optical fiber
optical glass
optical illusion
optical isomerism
optical mouse
optical rotation
optical scanner
optical semiconductor
optical sound
optical tweezers
optician
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optical semiconductor
op·ti·cal sem·i·con·duc·tor (plural op·ti·cal sem·i·con·duc·tors)


noun 
Definition:
 
solid-state optical device: an optoelectronic semiconductor device, e.g. a laser or photodiode
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