melanopsin
Word Rarity
Very rare
Frequency: Zipf frequency 1.51 in modern English
14
Scrabble Score
10
Letters
1
Syllables
9
Unique Chars
Meaning
noun
A type of photopigment (an opsin) found in the retina; it is involved in the regulation of circadian rhythms
Etymology
Etymology tree Proto-Indo-European *melh₂-der. Proto-Indo-European *mélh₂ns Proto-Hellenic *mélans Ancient Greek μέλᾱς (mélās)der. English melano- English opsin English melanopsin From melano- + opsin.