SINCE 1828
acromion
noun
acro·mi·on
| \ ə-ˈkrō-mē-ˌän, -ən
\
\
Medical Definition of acromion
: the outer end of the spine of the scapula that protects the glenoid cavity, forms the outer angle of the shoulder, and articulates with the clavicle
— called also acromial process, acromion process
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