vortical motion

15 LETTERS · STARTS WITH V

vortical motion is a valid 15-letter word worth 21 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

V4O1R1T1I1C3A1L1M3O1T1I1O1N1

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

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does vortical motion mean?