pseudo cancellation

19 LETTERS · STARTS WITH P

pseudo cancellation is a valid 19-letter word worth 25 points in Scrabble and 33 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3S1E1U1D2O1C3A1N1C3E1L1L1A1T1I1O1N1

3 + 1 + 1 + 1 + 2 + 1 + 0 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does pseudo cancellation mean?