The Oxford Thesaurus An A-Z Dictionary of Synonyms - eddyn.

1) swirl, whirl, vortex, gurgitation; whirlpool, maelstrom, Charybdis; dust devil, whirlwind, twister, tornado, cyclone, typhoon, hurricane; waterspout: These treacherous eddies are caused by tidal changes. --v. 2) swirl, whirl, turn, spin: The wind eddied round us, driving the dinghy this way and that.