• WordNet 3.6
    • n acromion the outermost point of the spine of the shoulder blade
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Webster's Revised Unabridged Dictionary
    • n Acromion (Anat) The outer extremity of the shoulder blade.
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Century Dictionary and Cyclopedia
    • n acromion In anatomy, the distal end of the spine of the scapula or shoulder-blade. In man it is an enlarged process, which, originating by an independent center of ossification, articulates with the distal end of the clavicle, and gives attachment to part of the deltoid and trapezius muscles: commonly called the acromial process, or acromion process. Its relations are the same in other mammals which have perfect clavicles. See cut under scapula.
    • n acromion In ichthyology, same as supraclavicle; a shoulder-girdle bone above the clavicle.
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Webster's Revised Unabridged Dictionary
Gr. ; 'a`kros extreme + shoulder: cf. F. acromion,


In literature:

The deltoid is wasted, and the acromion unduly prominent.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
In man there runs from the acromion to the manubrium of the sternum a bone, the collar-bone or clavicle.
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
The tip of the acromion is usually employed as a fixed point in measuring the length of the upper arm.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
The acromion and coracoid processes of the scapula are rudimentary.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7" by Various
The acromion is prominent, and projects a little beyond the glenoid cavity.
"Artistic Anatomy of Animals" by Édouard Cuyer
As in other American Edentates, the acromion joins the coracoid.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard