pyörivä

Pyörivä is a Finnish adjective meaning rotating or revolving. It is formed from the verb pyöriä (to rotate) with the present-participle suffix -vä, and is used to describe motion, objects or processes that turn around an axis. In everyday language and technical contexts, pyörivä describes anything that follows a circular or angular path, such as a pyörivä kehä (rotating ring) or pyörivä kiekko (spinning disk).

In science and engineering, pyörivä is commonly attached to terms for rotational dynamics and devices. Examples include pyörivä liike (rotational motion), pyörivä laite (rotating device), and pyörivä klooni in metaphorical usage. In physics and mechanics, discussions of angular velocity, angular momentum and torques frequently use the concept in phrases that describe how objects behave while pyörivä around an axis. In computer graphics, pyörivä animaatio refers to rotating animations of models or cameras, and pyörivä symmetria denotes rotational symmetry.

In mathematics, the idea of rotation around a point or axis is expressed with phrases such as pyörivä symmetria and pyörimislukija in descriptive texts. The term is also used in astronomy and geophysics to describe rotating celestial bodies or spinning planets. As a Finnish lexical item, pyörivä functions primarily as an adjective but can participate in compound nouns and nominalizations to name rotating phenomena or objects.

See also: rotational motion, angular velocity, rotational symmetry, gyroscope.