porphyropsin Hear it!

porphyropsin definition

por·phy·rop·sin (pôr′fə räp′sin)

noun

a photosensitive, carotenoid protein pigment found in the rods of the retinas of freshwater vertebrates

Etymology: < Gr porphyra, purple + opsis, appearance (< ōps, eye) + -in

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.