korkeahiilisen

Korkeahiilisen is a Finnish adjective form meaning high-carbon, used to describe substances or materials that have a high carbon content. It is constructed from korkea (high) and hiili (carbon or coal) with the standard adjectival suffix -inen, yielding korkeahiilinen, meaning high-carbon.

The form korkeahiilisen is the genitive singular of korkeahiilinen. It appears when the modified noun is in the genitive case, for example in the phrase korkeahiilisen aineen pitoisuus, meaning the carbon content of a high-carbon substance. This grammatical form is typical in technical and scientific Finnish, where precise noun-adjective agreement is required.

Usage and scope: korkeahiilinen/korkeahiilisen is primarily found in technical, scientific, or industrial writing, such as geology, materials science, and chemistry. In broader everyday Finnish, speakers may instead describe high carbon content using phrases like korkeahiilinen (as a compound adjective before a noun) or use expressions such as korkean hiilipitoisuuden describing the property (of high carbon content). The term emphasizes carbon content rather than other properties like ash content or calorific value, though context may specify which carbon-related characteristic is meant.

Etymology and related terms: the compound derives from korkea and hiili, attached with -nen. Related concepts include hiilipitoisuus (carbon content), hiili- or carbon-related technical terms, and the broader category of carbon-rich or carbonaceous materials.

See also: korkeahiilinen, hiili, hiilipitoisuus, carbon-rich materials.