chain coupling

14 LETTERS · STARTS WITH C

chain coupling is a valid 14-letter word worth 23 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3H4A1I1N1C3O1U1P3L1I1N1G2

3 + 4 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 2 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does chain coupling mean?