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]

Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "eddy":
   Charybdis, Maelstrom, ado, agitation, back, back stream, backflow,
   backwash, backwater, brouhaha, bustle, centrifugate, centrifuge,
   commotion, countercurrent, counterflow, counterflux, cyclone,
   disturbance, dizzy round, dust devil, ebullience, ebullition,
   effervescence, embroilment, feery-fary, ferment, fermentation,
   flurry, fume, gulf, gurge, gyre, hurly-burly, hurricane, hurry,
   hurry-scurry, maelstrom, pell-mell, perturbation, pirouette, purl,
   rat race, reel, refluence, reflux, regurgitation, round, ruffle,
   spin, stir, surge, swirl, swirling, to-do, tornado, tumult,
   turbulence, turmoil, turn, twirl, twister, typhoon, uproar, vortex,
   waterspout, wheel, whirl, whirligig, whirlpool, whirlwind, whorl,
   yeastiness



U.S. Gazetteer Counties (2000):

Eddy -- U.S. County in North Dakota
   Population (2000):    2757
   Housing Units (2000): 1418
   Land area (2000):     630.118543 sq. miles (1631.999466 sq. km)
   Water area (2000):    14.109773 sq. miles (36.544144 sq. km)
   Total area (2000):    644.228316 sq. miles (1668.543610 sq. km)
   Located within:       North Dakota (ND), FIPS 38
   Location:             47.747572 N, 98.975712 W
   Headwords:
    Eddy
    Eddy, ND
    Eddy County
    Eddy County, ND


U.S. Gazetteer Counties (2000):

Eddy -- U.S. County in New Mexico
   Population (2000):    51658
   Housing Units (2000): 22249
   Land area (2000):     4182.021664 sq. miles (10831.385925 sq. km)
   Water area (2000):    15.552658 sq. miles (40.281198 sq. km)
   Total area (2000):    4197.574322 sq. miles (10871.667123 sq. km)
   Located within:       New Mexico (NM), FIPS 35
   Location:             32.527170 N, 104.262035 W
   Headwords:
    Eddy
    Eddy, NM
    Eddy County
    Eddy County, NM