An eddy, a whirlpool; an eddying or whirling body of water, in later use also of cloud, dust, etc.

A cloud of mist or smoke. Obsolete.

In various transferred uses. Applied to anything resembling a sheep's fleece either in appearance or consistence; a white cloud, etc.; a quantity of…

A trail or cloud of smoke, vapour, etc., issuing from a localized source and spreading or billowing out as it travels.