Source : Webster's Revised Unabridged Dictionary (1913)

Eddy \Ed"dy\, n.; pl. {Eddies}. [Prob. fr. Icel. i?a; cf. Icel.
   pref. i?- back, AS. ed-, OS. idug-, OHG. ita-; Goth. id-.]
   1. A current of air or water running back, or in a direction
      contrary to the main current.

   2. A current of water or air moving in a circular direction;
      a whirlpool.

            And smiling eddies dimpled on the main. --Dryden.

            Wheel through the air, in circling eddies play.
                                                  --Addison.

   Note: Used also adjectively; as, eddy winds. --Dryden.

Eddy \Ed"dy\, v. i. [imp. & p. p. {Eddied}; p. pr. & vb. n.
   {Eddying}.]
   To move as an eddy, or as in an eddy; to move in a circle.

         Eddying round and round they sink.       --Wordsworth.

Eddy \Ed"dy\, v. t.
   To collect as into an eddy. [R.]

         The circling mountains eddy in From the bare wild the
         dissipated storm.                        --Thomson.

Source : WordNet®

Eddy
     n 1: founder of Christian Science in 1866 (1821-1910) [syn: {Mary
          Baker Eddy}, {Mary Morse Baker Eddy}]
     2: a miniature whirlpool or whirlwind resulting when the
        current of a fluid doubles back on itself [syn: {twist}]
     v : flow in a circular current, of liquids [syn: {purl}, {whirlpool},
          {swirl}, {whirl}]