The Collaborative International Dictionary of English v.0.48:

Eddy \Ed"dy\, v. t.
   To collect as into an eddy. [R.]
   [1913 Webster]

         The circling mountains eddy in
         From the bare wild the dissipated storm. --Thomson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Eddy \Ed"dy\ ([e^]d"d[y^]), n.; pl. Eddies ([e^]d"d[i^]z).
   [Prob. fr. Icel. i[eth]a; cf. Icel. pref. i[eth]- 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.
      [1913 Webster]

   2. A current of water or air moving in a circular direction;
      a whirlpool.
      [1913 Webster]

            And smiling eddies dimpled on the main. --Dryden.
      [1913 Webster]

            Wheel through the air, in circling eddies play.
                                                  --Addison.
      [1913 Webster]

   Note: Used also adjectively; as, eddy winds. --Dryden.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

         Eddying round and round they sink.       --Wordsworth.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Eddy
    n 1: founder of Christian Science in 1866 (1821-1910) [syn:
         Eddy, 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: eddy, twist]
    v 1: flow in a circular current, of liquids [syn: eddy,
         purl, whirlpool, swirl, whirl]