oxygen-hydrogen welding

23 LETTERS · STARTS WITH O

oxygen-hydrogen welding is a valid 23-letter word worth 45 points in Scrabble and 49 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

O1X8Y4G2E1N1-0H4Y4D2R1O1G2E1N1W4E1L1D2I1N1G2

1 + 8 + 4 + 2 + 1 + 1 + 0 + 4 + 4 + 2 + 1 + 1 + 2 + 1 + 1 + 0 + 4 + 1 + 1 + 2 + 1 + 1 + 2 =45 PTS

DOUBLE WORD → 90TRIPLE WORD → 135

MEANING

What does oxygen-hydrogen welding mean?