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

  • noun A turn or twist about a center; a spiral.
  • noun Zoology One of the whorls of a spiral gastropod shell.

from The Century Dictionary.

  • noun A rolling or winding; a twist; especially, a spiral turn; a convolution.
  • noun In conchology: A whorl; one turn of a spiral shell.
  • noun A set of whorls; the spire of a shell; the spiral turning or twisting of a shell. See cuts under spire, n., and univalve.
  • noun In anatomy, a convolution or gyration; a gyrus: as, the volutions of the brain.

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

  • noun A spiral turn or wreath.
  • noun (Zoöl.) A whorl of a spiral shell.

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

  • noun A turning (rolling or revolving) motion
  • noun A single turn of a coil

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

  • noun a rolling or revolving motion


from The American Heritage® Dictionary of the English Language, 4th Edition

[From Latin volūtus, past participle of volvere, to turn; see volute.]


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