screw axis

10 LETTERS · STARTS WITH S

screw axis is a valid 10-letter word worth 21 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1C3R1E1W4A1X8I1S1

1 + 3 + 1 + 1 + 4 + 0 + 1 + 8 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does screw axis mean?