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

See Examples For:

retinoid

A second study, led by former Kang lab graduate student Mark Esposito and published in the journal iScience, focused on designing drugs that inhibit retinoic acid production and disable retinoid signaling altogether.

From Science Daily ● Jan. 16, 2026

“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

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