kemiallisilla
Kemiallisilla is the inessive plural form of the Finnish adjective kemiallinen (chemical). It is used to describe plural nouns in a context that expresses location inside or involvement with chemistry. Common examples include kemiallisilla aineilla (with chemical substances) and kemiallisilla näytteillä (on chemical samples).
Etymology: kemiallinen derives from kemia (chemistry), borrowed from Swedish kemi, which ultimately traces to Greek khēmiā
Usage notes: In everyday language, kemiallisilla and related forms serve a grammatical function to indicate relationships