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

  • n. A current, as of water or air, moving contrary to the direction of the main current, especially in a circular motion.
  • n. A drift or tendency that is counter to or separate from a main current, as of opinion, tradition, or history.
  • intransitive v. To move in or as if in an eddy. See Synonyms at turn.
  • transitive v. To cause to move in or as if in an eddy.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A current of air or water running back, or in an opposite direction to the main current. Especially a circular current.
  • v. To form an eddy.

from the GNU version of the Collaborative International Dictionary of English

  • n. A current of air or water running back, or in a direction contrary to the main current.
  • n. A current of water or air moving in a circular direction; a whirlpool.
  • intransitive v. To move as an eddy, or as in an eddy; to move in a circle.
  • transitive v. To collect as into an eddy.

from The Century Dictionary and Cyclopedia

  • To move circularly or in a winding manner, as the water of an eddy, or so as to resemble the movement of an eddy.
  • To cause to move in an eddy; collect as into an eddy; cause to whirl.
  • n. A part of a fluid, as a stream of water, which has a rotatory motion; any small whirl or vortex in a fluid.
  • n. Synonyms See stream.

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

  • n. founder of Christian Science in 1866 (1821-1910)
  • v. flow in a circular current, of liquids
  • n. a miniature whirlpool or whirlwind resulting when the current of a fluid doubles back on itself


Middle English ydy, probably of Scandinavian origin; akin to Old Norse idha.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English eddy, from either Old English edēa (< ed- "turning" + ēa "water"), equivalent to ed- +‎ ea; or from Old Norse iða. (Wiktionary)



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  • Poor Eddy. Sounds like a Mafia hit.

    March 20, 2011

  • There was an eddy in the mass of human bodies, and the woman with the helmeted head and tawny cheeks rushed out to the very brink of the stream.

    -Heart of Darkness, Conrad

    March 20, 2011