nerve tissue

NOUN
12 LETTERS · STARTS WITH N

nerve tissue is a valid 12-letter word worth 14 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
N1E1R1V4E1T1I1S1S1U1E1
1 + 1 + 1 + 4 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 =14 PTS
DOUBLE WORD → 28TRIPLE WORD → 42
MEANING

What does nerve tissue mean?