Puoliskojen

Puoliskojen is the genitive plural form of the Finnish noun puolisko, which can mean either half of a whole or a hemisphere. In everyday language puolisko usually refers to one of two equal parts that together form a complete object. In geographic or astronomical contexts, puolisko can denote a hemisphere, though Finnish commonly specifies north and south with phrases such as pohjoinen puolisko or eteläinen puolisko.

The form puoliskojen is used when the halves or hemispheres relate to another noun in the genitive plural, for example to express possession, association, or division. The basic inflection pattern follows standard Finnish noun declension: the nominative plural is puoliskot, the genitive plural is puoliskojen, and other cases align with the same stem. The genitive singular is puoliskon, and the partitive singular is puoliskoa.

Common usages include phrases such as puoliskojen jako (the division into halves), puoliskojen välinen ero (the difference between the halves), and maapallon puoliskojen ilmasto-olot (the climate conditions of the Earth's hemispheres). The term is versatile in both scientific and everyday language, and it gains specific meaning from context—whether discussing geometry, geography, or abstract divisions of a whole.

In summary, puoliskojen functions as the genitive plural of puolisko, enabling expressions of relation, ownership, or division involving halves or hemispheres within Finnish discourse.