Definitions

1. adjective

relating to or using light, especially in the form of visible light, especially in the context of vision, photography, or other scientific or technical applications.

“The optical lenses in the camera produced high-quality images.”

2. noun

a branch of physics and engineering dealing with the properties and behavior of light.

“The researcher specialized in optical physics and its applications in telecommunications.”

3. noun

a system or device that uses light to transmit or receive signals, especially in the form of fiber-optic cables.

“The company invested heavily in optical communication infrastructure.”