retinoid

R1E1T1I1N1O1I1D2

adjective

Pertaining to or resembling a resin.

UncommonFirst used 19th c.Scrabble 9

Meanings

retinoid1

adjectiveretinoid (comparative more retinoid, superlative most retinoid)

comparative more retinoid · superlative most retinoid

  1. obsoleterarePertaining to or resembling a resin.First known use 19th c.

retinoid2

nounretinoid (plural retinoids)

plural retinoids

  1. biochemistryAny of a class of compounds whose structure or effects on the body resemble retinol (vitamin A).First known use 20th c.

    Tests on the two retinoids, combined with computer modelling, showed that the compounds killed not only normal MRSA cells, but dormant, or “persister”, cells too.

    2018 March 28, Ian Sample, The Guardian

Origin

retinoid · adjective

  1. Ancient Greekῥητίνη“resin”
  2. Englishretinoid

From Ancient Greek ῥητίνη (rhētínē, “resin”) + -oid.

Full word history & related roots →

Rhymes & wordplay

Anagrams

Cite this entry
APA

retinoid. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/retinoid

MLA

“retinoid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/retinoid. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “retinoid,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/retinoid.

Source: retinoid on Wiktionary, CC BY-SA 4.0.