retinoid

American  

[ret-n-oid] / ˈrɛt nˌɔɪd /

noun

1. Biochemistry. any of a group of substances related to vitamin A and functioning like vitamin A in the body.

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adjective

1. resembling the retina.

Etymology

Origin of retinoid

First recorded in 1975–80; retin(ol) + -oid

Example Sentences

“If you’re using a topical retinoid or topical vitamin C, they’re much less expensive,” she says.

From Los Angeles Times • May 14, 2025

Thalidomide, a well-known teratogen in humans, and retinoid derivatives -- used in treatments against leukaemia, psoriasis, and acne -- are known to cause severe heart defects in the fetus.

From Science Daily • Nov. 28, 2023

You meet with a doctor online, then receive a retinoid at a strength that suits your needs.

From New York Times • Jan. 29, 2020

Mixed with retinoid and oatmeal properties, this cream will reduce fine lines, wrinkles and relieve irritation from skin conditions like eczema or rashes.

From Golf Digest • Feb. 1, 2019

Both Waldorf and Jaliman directed us to Differin 0.1 percent gel as a solution for getting rid of acne, which is a prescription-strength retinoid that’s now over-the-counter.

From Slate • Aug. 1, 2018