chain line

10 LETTERS · STARTS WITH C

chain line is a valid 10-letter word worth 14 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3H4A1I1N1L1I1N1E1

3 + 4 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 =14 PTS

DOUBLE WORD → 28TRIPLE WORD → 42

MEANING

What does chain line mean?