Toistuvan

Toistuvan is a Finnish adjective meaning "recurrent" or "repeating." It is formed from the verb toistaa, meaning "to repeat," using the present active participle suffix -va to create the base adjective toistuva. The form toistuvan is the genitive singular of this adjective, used when the noun it modifies is in the genitive case, for example: toistuvan ilmiön vaikutus, "the effect of the recurring phenomenon."

In ordinary use, toistuva describes events, processes, or patterns that occur more than once or on a regular basis. It is commonly found in medical, scientific, and everyday language. Examples include toistuvat oireet (recurrent symptoms), toistuva virhe (a recurring error), and toistuva ilmiö (a recurring phenomenon).

Grammar and inflection follow standard Finnish adjective patterns. Like other adjectives, toistuva agrees with the noun in case and number. The genitive singular form is toistuvan, the nominative singular is toistuva, and the plural forms include toistuvat (nominative) and toistuvia (partitive/genitive variations, depending on the noun). This flexibility allows the word to describe recurring phenomena across different contexts and grammatical constructions.

See also: toistaa (to repeat), toistaminen (repetition), recurring terminology in Finnish scientific writing.