or e·lec·tro·op·tics

noun (used with a singular verb)
  1. the branch of physics dealing with the effects of electrical fields on optical phenomena, as in the Kerr effect.

Origin of electro-optics

First recorded in 1890–95
Related formse·lec·tro-op·ti·cal, adjectivee·lec·tro-op·ti·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018