spindle fiber

13 LETTERS · STARTS WITH S

spindle fiber is a valid 13-letter word worth 20 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1P3I1N1D2L1E1F4I1B3E1R1

1 + 3 + 1 + 1 + 2 + 1 + 1 + 0 + 4 + 1 + 3 + 1 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does spindle fiber mean?