# rhodopsin

> English word · Noun

## Definitions
1. A light-sensitive pigment in the rod cells of the retina; it consists of an opsin protein bound to the carotenoid retinal

## Etymology
From Ancient Greek ῥόδον (rhódon, “rose”), due to its pinkish color, and ὄψις (ópsis, “sight”).

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