swirl

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To move with a twisting or whirling motion; eddy. synonym: turn.
• intransitive verb To be dizzy or disoriented.
• intransitive verb To be arranged in a spiral, whorl, or twist.
• intransitive verb To cause to move with a twisting or whirling motion.
• intransitive verb To form into or arrange in a spiral, whorl, or twist.
• noun A whirling or eddying motion or mass.
• noun Something, such as a curl of hair, that coils, twists, or whirls.
• noun Whirling confusion or disorder.

from The Century Dictionary.

• noun A whirling motion; an eddy, as of water; gyration; whirl.
• noun Hence Specifically, in angling, the rush of a fish through the water when it rises to a fly.
• noun A twist or convolution, as in the grain of wood; a curl; a spot marked by swirling.
• noun Same as swire, 2.
• To form eddies; whirl in eddies; have a whirling motion; whirl about.
• To give a whirling motion to.

from the GNU version of the Collaborative International Dictionary of English.

• noun A whirling motion; an eddy, as of water; a whirl.
• verb To whirl, or cause to whirl, as in an eddy.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a whirling eddy
• noun a twist or coil of something
• verb To twist or whirl, as an eddy
• verb To be arranged in a twist, spiral or whorl

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb turn in a twisting or spinning motion
• verb flow in a circular current, of liquids
• noun the shape of something rotating rapidly