phycoerythrobilin

== English == === Etymology === From phyco- +‎ erythr- +‎ bilin. === Noun === phycoerythrobilin (countable and uncountable, plural phycoerythrobilins) (biochemistry) A red phycobilin found in the phycobiliprotein phycoerythrin, of which it is the terminal acceptor of energy.