kehaosas

Kehaosas is an Estonian noun meaning a part of the body. It is used in anatomy, medicine, biology, and education to refer to any component of a living body, including external parts and internal structures. The word is a compound of keha, meaning body, and osa, meaning part. The standard plural form is kehaosad, used when speaking about multiple body parts; kehaosa is the singular, and kehaosas can appear in various grammatical forms depending on the sentence.

In practice, kehaosas can refer to general regions or specific parts, but for named parts Estonians more commonly use direct terms such as pea (head), käsi (hand), jalg (leg/foot), süda (heart), maks (liver), kops (lung), kõht (stomach), or selg (back). The term also appears in dictionaries and educational materials to label diagrams of the human body.

Relation to other terms: kehaosa is broader than elund (organ) because it covers external parts, bones, muscles, and body regions in addition to internal organs. It is used in veterinary contexts to refer to body parts of animals as well.

See also: Estonian anatomy terms, elund, keha.