gyratory

[ jahy-ruh-tawr-ee, -tohr-ee ]

/ ˈdʒaɪ rəˌtɔr i, -ˌtoʊr i /

moving in a circle or spiral; gyrating.

Origin of gyratory

First recorded in 1810–20; gyrat(ion) + -ory¹

As soon as the current would strike an obstruction like the cylinder, it would make a gyratory sweep around its base.

The Boy With the U. S. Life-Savers |Francis Rolt-Wheeler
He represents the agitation of the lodge to be due to currents of air, having the irregular and gyratory power of a whirlwind.

The Indian in his Wigwam |Henry R. Schoolcraft
A vast basin has been thus formed, in which the sweep of the river prolongs itself in gyratory currents.

Fragments of science, V. 1-2 |John Tyndall
In quarrying and crushing New Jersey trap rock with gyratory crushers the following was the cost of producing 200 cu.

Concrete Construction |Halbert P. Gillette

He found them revolving like ours, and hence inferred the truth of the gyratory theory in relation to all winds.

The Philosophy of the Weather |Thomas Belden Butler