gill filament

13 LETTERS · STARTS WITH G

gill filament is a valid 13-letter word worth 18 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

G2I1L1L1F4I1L1A1M3E1N1T1

2 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 1 + 3 + 1 + 1 + 1 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does gill filament mean?