hydraulic coupling

18 LETTERS · STARTS WITH H

hydraulic coupling is a valid 18-letter word worth 31 points in Scrabble and 38 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

H4Y4D2R1A1U1L1I1C3C3O1U1P3L1I1N1G2

4 + 4 + 2 + 1 + 1 + 1 + 1 + 1 + 3 + 0 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 2 =31 PTS

DOUBLE WORD → 62TRIPLE WORD → 93

MEANING

What does hydraulic coupling mean?