Pitkäkestoisia
Pitkäkestoisia is the partitive plural form of the Finnish adjective pitkäkestoinen, meaning long-lasting or durable. The base combines pitkä (long) and kesto (duration) with the standard -inen adjective ending. In Finnish, adjectives agree with the nouns they modify in number and case, so pitkäkestoisia appears when the noun is plural and in the partitive case, for example pitkäkestoisia lääkkeitä.
The term is commonly used to describe products, medications, or phenomena that maintain their effect or function
In practice, pitkäkestoisia can appear in medical, consumer, and technical contexts, among others. It is a flexible