# photoreceptor

> English word · Noun · frequency rank #75,294

## Definitions
1. A specialized neuron or other structure able to detect and react to light.

## Etymology
From photo- + receptor.

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