erfðafræðilegir

Erfðafræðilegir is the masculine plural nominative form of the Icelandic adjective erfðafræðilegur, meaning genetic or hereditary. It is used to describe nouns that pertain to genetics or heredity in Icelandic, typically in scientific or medical contexts.

Etymology and grammar: The term combines erfðafræði, the field of genetics, with the suffix -legur to form an adjective. In Icelandic, adjectives agree with the noun they modify in gender, number, and case. Therefore, erfðafræðilegir modifies masculine plural nouns, while feminine plural would be erfðafræðilegar and neuter plural erfðfræðileg; the singular forms include erfðafræðilegur (masc.), erfðafræðilegar (fem.), and erfðafræðilegt (neut.). The adverbial form is erfðafræðilega.

Usage: The adjective is common in biology, medicine, and related sciences to describe genetic properties, conditions, or research. Examples include erfðafræðilegir eiginleikar (genetic traits), erfðafræðilegir sjúkdómar (genetic diseases), and erfðafræðilegar rannsóknir (genetic studies). The term anchors discussions to heredity and genomic factors rather than environmental influences alone.

See also: Erfðafræði, the field of genetics; erfðafræðilegur as the base form of the adjective; related grammatical forms for feminine and neuter and plural variations.