kostná

Kostná is a Slovak adjective meaning bone-related. It is the feminine singular form used before feminine nouns. The corresponding masculine form is kostný and the neuter form is kostné. In Czech, the equivalent adjective is kostní. The term is used in medical and anatomical terminology to describe structures or properties related to bones.

In practice, kostná appears in phrases that name bone-related features. A common example is kostná dreň, which refers to bone marrow. Because adjectives must agree with the gender of the noun, the form kostná is used only before feminine nouns (such as dreň), while kostné is used before neuter nouns (for example kostné tkanivo, meaning bone tissue) and kostný before masculine nouns.

Etymologically, kostná derives from the root kost- meaning bone, with standard Slavic adjective endings that indicate gender agreement. It is most commonly found in Slovak medical and anatomical language; Czech uses kostní for the same concept.

See also: bone, skeleton, osteology, bone marrow.