Photoreceptor

Pronunciation: /ˈfoʊˌtoʊˈɹisɛptɝ/

Photoreceptor (noun)

  1. A cell in the eye that detects light and helps the brain understand what you see.
  2. A specialized cell in an organism that responds to light signals and starts a change inside the body.

Examples

  • The eye light sensor detects changes in brightness.
  • Your eye light sensor helps you see in dim light.