Learn how to say Optical correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word optical:
1relating to sight, especially in relation to the action of light:
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:
Electronics (of a device) requiring electromagnetic radiation for its operation:
integrated optical circuits
a pair of glasses:
he pushed his opticals on to the bridge of his nose