trolley insulator

17 LETTERS · STARTS WITH T

trolley insulator is a valid 17-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

T1R1O1L1L1E1Y4I1N1S1U1L1A1T1O1R1

1 + 1 + 1 + 1 + 1 + 1 + 4 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does trolley insulator mean?