rullande

Rullande is a Swedish term formed as the present participle of the verb rulla (to roll). As an adjective or participle, it describes objects or actions characterized by rolling motion—movement achieved by rotation around an axis rather than sliding. The form is commonly used in both everyday language and technical contexts to indicate ongoing rolling, for example in phrases such as rullande däck or rullande rörelse.

Etymology and grammar: rullande is created by adding the suffix -ande to the infinitive stem rulla, forming a present participle that can modify nouns or function as part of a verbal predicate. It is comparable to the English adjective “rolling.”

Usage and contexts: In physics and engineering, rullande denotes rolling motion and phenomena such as rolling resistance (rullmotstånd) and rolling contact (rullkontakt) between surfaces, distinguishing them from sliding motion (glidning). In everyday Swedish, it describes anything in motion by rotation, such as a rullande vagn or other objects that move by wheels rather than by sliding.

Related forms: The noun form rullning (rolling, the act of rolling) is often used when the emphasis is on the process rather than the state.

See also:

- rulla

- rullning

- rullmotstånd

- rullkontakt

Rullande thus serves as a flexible descriptor for motion by rotation, spanning both ordinary language and technical discourse.