friction pile

13 LETTERS · STARTS WITH F

friction pile is a valid 13-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4R1I1C3T1I1O1N1P3I1L1E1

4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does friction pile mean?