Kääntyvissä

Kääntyvissä is the inessive plural form of the Finnish present active participle kääntyvä, which comes from the verb kääntyä meaning to turn or rotate. As an adjective, kääntyvä describes something that turns or is capable of turning. When it modifies a plural noun in the inessive case, the form becomes kääntyvissä, for example in phrases like kääntyvissä nivelissä (in turning/rotating joints) or kääntyvissä laitteissa (in rotating devices).

Usage and meaning: The word is mainly used in technical, descriptive, and design-oriented Finnish to characterize parts, mechanisms, or systems that have turning or pivoting capability. It can refer to physical properties (a rotating joint) or functional characteristics (a mechanism designed to rotate). The sense is close to “rotating” or “pivoting” in English, but it retains Finnish participial nuance as an adjective.

Grammatical notes: Finnish adjectives and participles agree with the noun they modify in number and case. Kääntyvissä signals plural and inessive: the noun it modifies would be in plural inessive form. The singular inessive form is kääntyvässä. Related forms include the noun kääntyminen (the act of turning/rotation) and the general root käänty- used in various compounds.

Examples of use: In engineering or robotics texts you might encounter phrases such as kääntyvissä nivelissä tapahtuva liike or kääntyvissä peileissä säädettävä kuvarakenne, illustrating turning joints or swiveling mirrors. See also related terms such as kääntyvä, kääntyminen, nivel, and pyörivä for broader context on turning and rotation in Finnish.