retinoid

[ ret-n-oid ]

noun

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

adjective

1. resembling the retina.

Word History and Origins

Origin of retinoid¹

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

Example Sentences

One result of retinol biology remaining obscure for so long is that retinoid and vitamin A applications have long produced confusing results.

From Science Daily

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

“What I tell patients is that the retinoid needs to be the star of the show. She’s a bit of a diva, and you really have to let her have her time to set the stage just the way she wants it before allowing the supporting cast onstage.”

From Washington Post

“So, part of this is the fault of dermatologists. We need to give people the right information about how to safely and tolerably introduce a retinoid.”

From Washington Post

That means knowing what strength retinoid to start with and how often to apply.

From Washington Post