Definitions

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

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

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from the GNU version of the Collaborative International Dictionary of English

  • n. A spiral turn or wreath.
  • n. A whorl of a spiral shell.

from The Century Dictionary and Cyclopedia

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

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

  • n. a rolling or revolving motion

Etymologies

From Latin volūtus, past participle of volvere, to turn; see volute.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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