mittaluokan
Mittaluokan is the genitive form of mittaluokka, a Finnish noun used to describe a middle size or middle category within a size-based or measurement-based classification system. Etymologically, mitta means “measurement” and luokka means “class.” The exact scope of mittaluokka varies by domain, and there is no universal numeric threshold that defines it.
In practice, mittaluokan is used in technical and commercial contexts to label items that are not small
The term is not commonly used to refer to socioeconomic class; Finnish typically expresses the middle class