UPDATED: The word [glenoid] is composed of the root term [-glen-] which arises from the Greek [γλήνη] (glíni), meaning “a shallow socket”, and the suffix [-oid], also Greek, meaning “similar to”. Similar to a shallow socket.

The etymology of the word is not clear, as some authors contend that it means “eyeball” or just the “pupil” of the eye. The earliest known use of the term by Homer was referring to a “mirror”. All of these meanings carry the reference to reflection of an image.

The term [glenoid cavity] is the smooth, slightly concave surface of the glenoid process of the scapula that forms part of the shoulder joint. Being so shallow, the glenoid cavity is supplemented by a fibrocartilaginous ring called the [glenoid labrum]. There are other uses of the term [glenoid] in human anatomy.

Original image courtesy of www.ancienttouch.com