castellated nut

15 LETTERS · STARTS WITH C

castellated nut is a valid 15-letter word worth 17 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3A1S1T1E1L1L1A1T1E1D2N1U1T1

3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does castellated nut mean?