any of a large class of natural or synthetic, photosensitive chemical compounds that are similar to vitamin A, including retinoic acid and retinal
retinoid in American English
(ˈretnˌɔid)
noun
1. Biochemistry
any of a group of substances related to vitamin A and functioning like vitamin A inthe body
adjective
2.
resembling the retina
Word origin
[1975–80; retin(ol) + -oid]This word is first recorded in the period 1975–80. Other words that entered Englishat around the same time include: family therapy, front-load, gridlock, methanogen, videotex-oid is a suffix meaning “resembling,” “like,” used in the formation of adjectives andnouns (and often implying an incomplete or imperfect resemblance to what is indicatedby the preceding element). Other words that use the affix -oid include: alkaloid, anthropoid, lithoid, ovoid, planetoid
Examples of 'retinoid' in a sentence
retinoid
Philosophy's anti-ageing retinoid pads are a home version of a chemical peel.
The Sun (2014)
Philosophy's miracle worker retinoid pads are different!
Times, Sunday Times (2012)
The easy-to-use system maintains the freshness of the active ingredients and delivers the exact amount of retinoid your skin needs.