Aineiden

Aineiden is the genitive plural form of the Finnish noun aine, which means substance, material, or matter. Aine can refer to any substance or component, including chemical substances, ingredients in a mixture, or more generally to matter. The form aineiden is used to express possession or relation to multiple substances, for example in phrases describing the properties, composition, or concentration of substances.

In usage, aineiden appears in many technical and everyday contexts. Examples include kemiallisten aineiden ominaisuudet (the properties of chemical substances), kaikkien aineiden koostumus (the composition of all substances), and erilaisten aineiden pitoisuudet (the concentrations of various substances). The word is most common when the head noun is in the genitive plural, signaling a relationship of one set of properties or measurements to multiple substances.

Grammatical notes: the nominative plural of aine is aineet, the genitive plural is aineiden, and the partitive singular is ainetta. Aineiden is typically found in noun phrases with adjectives or other nouns that describe the relationship to several substances, particularly in scientific, industrial, agricultural, or culinary texts where discussion centers on substances and their characteristics.

See also: Aine, Ainesosat, Aineosat. These related terms cover the broader concept of substances, ingredients, and components in Finnish usage.