casing spool

12 LETTERS · STARTS WITH C

casing spool is a valid 12-letter word worth 16 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3A1S1I1N1G2S1P3O1O1L1

3 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 3 + 1 + 1 + 1 =16 PTS

DOUBLE WORD → 32TRIPLE WORD → 48

MEANING

What does casing spool mean?