This is the 866th most frequent French word.
scientifique
Scientific; scientist.
In this sentence, 'scientifique' is used as an adjective modifying the noun 'méthode' to describe its nature as being related to science.
Une méthode scientifique est essentielle pour garantir des résultats fiables.
A scientific method is essential to ensure reliable results.
Again, 'scientifique' acts as an adjective here, providing more detail about the type of 'approche' being referenced.
Elle adopte une approche scientifique pour résoudre le problème.
She adopts a scientific approach to solve the problem.
Here, 'scientifique' functions as a noun referring to a person who works in the field of science.