# retinoid

> English word · Adjective · frequency rank #94,193

## Definitions
1. Pertaining to or resembling a resin.

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/retinoid