noun-modifying (irregular)
scapular; relating to the shoulder blade
Anatomical term used prenominally to describe structures associated with the scapula. Not a standalone noun in common usage.
肩甲動脈は肩甲骨の周りを走行する。
The scapular artery runs around the scapula.
肩甲部の痛みを訴える患者が多い。
Many patients complain of pain in the scapular region.
肩甲骨 is the noun for 'scapula' or 'shoulder blade', while 肩甲 is the prenominal adjective form used in compound anatomical terms.
From 肩 (shoulder) and 甲 (shell, armor), referring to the flat, protective shape of the shoulder blade. The exact historical derivation is uncertain.