tectorial membrane

18 LETTERS · STARTS WITH T

tectorial membrane is a valid 18-letter word worth 25 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

T1E1C3T1O1R1I1A1L1M3E1M3B3R1A1N1E1

1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 3 + 3 + 1 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does tectorial membrane mean?