perusfyysikaalisessa
Perusfyysikaalisessa is a Finnish term that functions as the inessive singular form of the compound adjective perusfyysikaalinen, meaning “basic physical” or “fundamental physical.” It is used to describe physical properties, aspects, or conditions that are considered foundational rather than derived or advanced.
In Finnish academic and scientific writing, perusfyysikaalisessa is employed to situate discussion within a fundamental physical
Etymology and morphology: the term combines perus- (basic) with fyysikaalinen (physical), itself derived from fysiikka (physics)
See also: Finnish grammar, adjective inflection, inessive case, compound adjectives in Finnish.