1. (n.) An eddy or vortex of water; a place in a body of water where the water moves round in a circle so as to produce a depression or cavity in the center, into which floating objects may be drawn; any body of water having a more or less circular motion caused by its flowing in an irregular channel, by the coming together of opposing currents, or the like.

2. (n.) A sea monster of the whale kind.

Charybdis Maelstrom ado back stream backflow backwash backwater bustle centrifugate centrifuge countercurrent counterflow counterflux dizzy round eddy flurry furore fuss gulf gurge gyre maelstrom pirouette pother purl rat race reel refluence reflux regurgitation round spin surge swirl turn twirl vortex wheel whirl whirligig whirlwind whorl