Scapula

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scapula (shoulder blade) The largest of the bones that make up each half of the pectoral (shoulder) girdle. It is a flat triangular bone, providing anchorage for the muscles of the forelimb and an articulation for the humerus at the glenoid cavity. It is joined to the clavicle (collar bone) in front.

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scap·u·la / ˈskapyələ/ • n. (pl. -lae / -ˌlē/ or -las ) Anat. technical term for shoulder blade.

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shoul·der blade • n. either of the large, flat, triangular bones that lie against the ribs in the upper back and provide attachments for the bone and muscles of the upper arm. Also called scapula.

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scapula
1. In tetrapods, the dorsal part of the pectoral girdle.

2. In Mammalia, the shoulder blade.

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shoulder blade (scapula) In vertebrates, either of two large, roughly triangular, flat bones found one on either side of the upper back. They provide for the attachment of muscles that move the forelimbs. See also shoulder

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scapula (skap-yoo-lă) n. (pl. scapulas or scapulae) the shoulder blade: a triangular bone, a pair of which form the back part of the shoulder girdle.
scapular adj.