# phycoerythrobilin

> English word · Noun

## Definitions
1. A red phycobilin found in the phycobiliprotein phycoerythrin, of which it is the terminal acceptor of energy.

## Etymology
From phyco- + erythr- + bilin.

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