Main Entry: acro·mi·on Pronunciation: &-'krO-mE-"än, -&n Function: noun : the outer end of the spine of the scapula that protectsthe glenoid cavity, forms the outer angle of the shoulder, and articulates with the clavicle called also acromial process,acromion process
acromion a·cro·mi·on (ə-krō'mē-ŏn', -ən) n. The outer end of the scapula, extending over the shoulder joint and forming the highest point of the shoulder, to which the collarbone is attached. Also called acromial process.