WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / O / opsin opsin noun /ɑpsɪn/ 2 syllables 5 letters Scrabble 7 WWF 9 Definitions noun retinal protein formed by the action of light on rhodopsin Look “opsin” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →