also: けちみゃく
noun
Medical or anatomical term for a blood vessel; in everyday language 血管 (けっかん) is more common.
血脈の異常が見つかった。
An abnormality was found in the blood vessels.
noun
blood relationship; blood ties
Refers to kinship by blood; often used in figurative or literary contexts to emphasize lineage or deep connection.
彼らは血脈で結ばれている。
They are bound by blood ties.