reciprocity failure

19 LETTERS · STARTS WITH R

reciprocity failure is a valid 19-letter word worth 30 points in Scrabble and 34 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
R1E1C3I1P3R1O1C3I1T1Y4F4A1I1L1U1R1E1
1 + 1 + 3 + 1 + 3 + 1 + 1 + 3 + 1 + 1 + 4 + 0 + 4 + 1 + 1 + 1 + 1 + 1 + 1 =30 PTS
DOUBLE WORD → 60TRIPLE WORD → 90
MEANING

What does reciprocity failure mean?

1