stimulus error

14 LETTERS · STARTS WITH S

stimulus error is a valid 14-letter word worth 15 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1T1I1M3U1L1U1S1E1R1R1O1R1

1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 =15 PTS

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does stimulus error mean?