exclusive disjunction

21 LETTERS · STARTS WITH E

exclusive disjunction is a valid 21-letter word worth 42 points in Scrabble and 52 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

E1X8C3L1U1S1I1V4E1D2I1S1J8U1N1C3T1I1O1N1

1 + 8 + 3 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 2 + 1 + 1 + 8 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =42 PTS

DOUBLE WORD → 84TRIPLE WORD → 126

MEANING

What does exclusive disjunction mean?