scapula

Meanings

1. 1
   noun

   either of the two large, flat, roughly triangular bones at the back of the shoulder; a shoulder blade

   The muscles controlling the arm attach at several points on the scapula.

Borrowed from Late Latin scapula, singularized from Latin scapulae, 'shoulders or shoulder blades.' Medical English uses scapula for one bone and scapulae for the plural.

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