whirler

from The Century Dictionary.

• noun In ceramics, a primitive horizontal wheel turned by one hand while the other hand of the potter fashions the clay; also a revolving wheel used by decorators in painting bands of slip, color, or gold on the ware; a decorating-wheel. See tournette.
• noun A revolving derrick used in loading iron ore on cars, or transferring it from cars to a vessel.
• noun An instrument designed to furnish a navigator with an artificial horizon when at sea. It is also known as Troughton's top, after its inventor, and spinner.
• noun One who or that which whirls.
• noun In rope-manuf., one of the revolving hooks to which the hemp is fastened in the operations of twisting it into rope-yarn or small rope.

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

• noun One who, or that which, whirls.

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

• noun A person who, or thing that whirls

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

• noun a revolving mechanism
• noun a dervish whose actions include ecstatic dancing and whirling