observacyjny
Observacyjny is an adjective that denotes relation to observation or to the act of observing. In standard Polish the normative form is obserwacyjny; observacyjny is considered a nonstandard or misspelled variant in most contexts. The root comes from obserwacja (observation) and the verb obserwować (to observe), itself derived through the Polish development of the Latin word observatio.
Etymology and form: The word forms a common family with other adjectives built from the noun obserwacja.
Usage: The term is widely employed in academic and scientific writing to contrast observational with experimental
See also: Observational study, observational data, observational astronomy, obserwacja, obserwacyjny typ metod.
Note: While some sources may encounter the form observacyjny, it is not the standard Polish spelling. For