Kokeellisissa

Kokeellisissa isen Finnish adjective form used in plural contexts. It is the inessive plural form of kokeellinen, meaning experimental, and it modifies a plural noun in the inessive case, indicating something occurs or exists in an experimental setting. Because the head noun is often omitted, phrases like kokeellisissa olosuhteissa (in experimental conditions) or kokeellisissa tutkimuksissa (in experimental studies) are common.

The term appears mainly in scientific, engineering, and research writing, where distinctions between theoretical and experimental work are important. Kokeellisissa describes elements such as methods, results, equipment, or environments that are part of experiments. It contrasts with teoreettinen (theoretical) and with other descriptors that indicate different research approaches. While it is standard in formal Finnish, it is less common in everyday speech, where generic phrases or more specific nouns are typically used.

Morphology and related forms: kokeellinen is the base adjective; kokeelliset is the nominative plural form. In the inessive plural, as seen in kokeellisissa, the ending -issa marks both plurality and the inessive case. This form can appear with various plural nouns to convey that multiple items or aspects are situated within experimental conditions.

Etymology: kokeellinen derives from kokeilu, meaning a test or trial, with the suffix -ellinen forming an adjective. The word reflects the scholarly emphasis on experimentation as a mode of inquiry.