(chiefly uncountable) The act of turning around a centre or an axis. / A single complete cycle around a centre or an axis.

undergoing physical rotation / that proceeds in sequence or in turns

present participle of rotate

One who or that which rotates. / (anatomy) A muscle by which a joint can be rotated. / A revolving reverberatory furnace. / (Internet) A banner ad that cycles through multiple advertisements.

Having the ability to rotate.

plural of rotatability

The ability of something to be rotated

(engineering) So as to be movable by rotation.

plural of rotational

(physics) An interaction between a polarized electromagnetic pulse, such as a beam of light, and a magnetic field, in which the plane of polarization is rotated in proportion to the intensity of the component of the magnetic field in the direction of travel of the pulse.