gyráció

Gyration refers to the act or state of turning or revolving around a central point or axis. In physics, it is often used in the context of rotational motion. When an object gyrates, it possesses angular velocity and angular momentum. The concept is closely related to rotation, with gyration sometimes implying a more complex or irregular motion than a simple, smooth rotation.

In mathematics, the radius of gyration is a property of a rigid body or a collection of point masses that relates its moment of inertia to its mass. It represents the distance from the axis of rotation at which, if all the mass of the object were concentrated, the object would have the same moment of inertia. The radius of gyration is a useful concept in mechanics, particularly in the analysis of rotating systems and the distribution of mass within them.

The term gyration can also be found in biology, referring to the movement of organisms or their parts. For instance, some bacteria exhibit gyration as a form of motility. In a broader sense, gyration can describe any circular or revolving motion, whether it's a physical object, a mathematical concept, or a biological process. The precise meaning often depends on the specific field of study.