kerroksen

Kerroksen is the genitive singular form of the Finnish noun kerros, which means a layer, stratum, or a floor/story of a building. Kerros is used to describe a single layer within a larger structure, whether natural (geological layers, atmospheric layers) or artificial (layers formed by processes or materials such as paint, varnish, wallpaper, or insulation). The genitive form kerroksen appears in phrases that indicate possession, association, or specification of a particular layer.

In practice, kerroksen is used to refer to the thickness, color, condition, or position of a specific layer. Examples include maalikerroksen paksuus (the thickness of the paint layer), jääkerroksen paksuus (the thickness of the ice layer), or kerroksen reunat (the edges of the layer). It also occurs in compound phrases where kerroksen functions as the head noun in a possessive construction, such as rakennuskerroksen viereinen kerros or ilmakehän kerroksen ominaisuudet, depending on context.

Morphology and usage notes:

- Kerroksen is the singular genitive form; the base noun kerros has the nominative singular kerros and the plural kerrokset.

- Genitive plural is kerrosten, used for phrases referring to multiple layers’ possession or attributes (e.g., kerrosten paksuudet).

- Finnish relies on such genitive constructions to link attributes to a specific layer without additional articles.

See also: kerros.