retinene
/ˈrɛtɪniːn/
noun
- A yellow or orange pigment in the retina that is derived from vitamin A and is essential for vision; also called retinal.
- Retinene changes shape when it absorbs light, starting the process of sight.
- A lack of retinene can lead to night blindness.
- The chemistry of retinene is a key topic in biology classes about the eye.
Synonyms