acromion

American  

[uh-kroh-mee-uhn] / əˈkroʊ mi ən /

noun

Anatomy.

plural

acromia

1. the outward end of the spine of the scapula or shoulder blade.

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acromion British  

/ əˈkrəʊmɪən /

noun

1. the outermost edge of the spine of the shoulder blade

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Other Word Forms

• acromial adjective
• subacromial adjective
• superacromial adjective

Etymology

Origin of acromion

1605–15; < New Latin < Greek akrṓmion, equivalent to akro- acro- + ṓm ( os ) shoulder + -ion noun suffix

Example Sentences

Impingement syndrome occurs when the rotator cuff tendons become "impinged" between boney anatomical structures of the shoulder, i.e. the coracoid as well as the acromion.

From US News • May 11, 2016

The Tour's medical service described the injury as a right shoulder trauma and a "dislocation between the collarbone and the acromion".

From Reuters • Jul. 5, 2014

In this case, the acromion is thrust under the acromial end of the clavicle, resulting in ruptures of both the acromioclavicular and coracoclavicular ligaments.

From Textbooks • Jun. 19, 2013

Without superior rotation of the scapula, the greater tubercle of the humerus would hit the acromion of the scapula, thus preventing any abduction of the arm above shoulder height.

From Textbooks • Jun. 19, 2013

In a patient wounded at Kamelfontein the bullet entered four inches below the acromion, pierced the deltoid, splintered the humerus, and crossed the axilla.

From Surgical Experiences in South Africa, 1899-1900 Being Mainly a Clinical Study of the Nature and Effects of Injuries Produced by Bullets of Small Calibre by Makins, George Henry