WHAT'S AN EDDY?
•A circular movement of water, counter to a main current, causing a small whirlpool.
•A current at variance with the main current in a stream of liquid or gas, especially one having a rotary or whirling motion.
•A small whirlpool.
• Any similar current, as of air, dust, or fog.
• A current or trend, as of opinion or events, running counter to the main current.
•(Of water, air, or smoke) move in a circular way.
"The mists from the river eddied around the banks"
Swirl, Whirl, Spiral, Swirl, Whirl, Churn, Swish, Revolve, Spin, Flow, Ripple, Billow, Foam, Froth, Boil, Surge.