mesokokoisia

Mesokokoisia is a Finnish adjective form meaning "of medium size" or "medium-sized." It is the partitive plural form used when referring to several objects of intermediate size. The base adjective is mesokokoinen; the word is built from meso- (from Greek mesos meaning middle) and koko (size). In Finnish, adjectives inflect for number and case; mesokokoisia is used with nouns in the partitive plural, for example "mesokokoisia kiviä" (medium-sized stones) or "mesokokoisia yksilöitä" (medium-sized individuals).

The term is commonly used across disciplines to describe items, populations, or structures that are not small nor large but fall into an intermediate size category. In biology it might describe mature individuals around average size within a species; in geology or material science it can refer to grains or particles of intermediate size. In survey data or ecological reports, mesokokoisia can classify observed elements according to a predefined size scale.

As with other Finnish adjectives, the form agrees with the noun it modifies in number and case; Finnish does not mark gender, so the same form is used for all genders. The word is primarily a descriptive, not a technical term, and its exact size range depends on the context and the scale chosen by researchers or writers.