opticalPronunciation: /ˈɒptɪk(ə)l/Translate optical | into French | into German | into Italian | into Spanish Definition of optical adjective 1relating to sight, especially in relation to the action of light:optical illusions constructed to assist sight:an optical aid relating to the science of optics. 2 Physics operating in or employing the visible part of the electromagnetic spectrum:optical telescopes Electronics (of a device) requiring electromagnetic radiation for its operation:integrated optical circuits noun (opticals) Indian a pair of glasses:he pushed his opticals on to the bridge of his noseDerivatives optically adverb optical in other Oxford dictionaries Definition of optical in the US English dictionary
