Phys. [a. Gr. ἀκρώμιον f. ἅκρο-ς extremity + ὦμος shoulder. Cf. Fr. acromion, which may be the direct source of the Eng.] The outer extremity of the shoulder-blade; the apophysis forming the upper and posterior extremity of the shoulder-blade, which is articulated with the external extremity of the clavicle, and gives attachment to the trapezoid and deltoid muscles. Also attrib. as acromion process.
1615. Crooke, Body of Man, XII. xxvii. 985. The extremity of this Spine is commonly called ἀκρώμιον, albeit according to Hippocrates Acromion be the articulation of the clauicle with the vpper part of the blade.
1827. Abernethy, Surg. Wks., II. 154. The patient complained of pain, extending towards the axilla and also towards the acromion.
1836. Todd, Cycl. Anat. & Phys., I. 364/2. The branch of the supra-scapular … descends under the root of the acromion process.
