porphyropsin
noun
por·phy·rop·sin ˌpȯr-fə-ˈräp-sən 
: a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin
Word History
Etymology
Greek porphyra purple + English -opsin (as in rhodopsin)
First Known Use
1930, in the meaning defined above
Medical Definition
porphyropsin
noun
por·phy·rop·sin ˌpȯr-fə-ˈräp-sən
: a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin
- round-trips
- roundabout
- roundabout chair
- roundaboutness
- roundaboutnesses
- roundabouts
- roundball
- rounded
- rounded (off or out)
- rounded binary
- rounded binary form
- rounded off or out
- rounded on
- rounded up
- roundedness
- roundednesses
- roundel
- roundelay
- roundelays
- roundels
- rounder
- rounder and backer
- rounders
- roundest
- roundfish