rɛtɪnɔːl

Definitions

1. noun

A vitamin A derivative used as a topical treatment for acne and skin conditions, also found naturally in the retina of the eye.

“The dermatologist recommended applying retinol cream to reduce fine lines on my face.”

2. adjective

Relating to the retina or its function.

“The retinol-sensitive cells in the eye are responsible for our night vision.”