half-retinal

12 LETTERS · 3 SYLLABLES · STARTS WITH H

half-retinal is a valid 12-letter word worth 17 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

H4A1L1F4-0R1E1T1I1N1A1L1

4 + 1 + 1 + 4 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does half-retinal mean?