glenoid

The surgeon examines the patient's glenoid cavity on the X-ray.

Definition

1. Adjective (Anatomy):
   • Relating to a shallow cavity: "glenoid" describes a shallow, saucer-shaped socket in a bone, typically where it articulates with another bone to form a joint (e.g., the glenoid cavity of the scapula).

Usage Examples

• Adjective:
  • The glenoid cavity of the shoulder blade holds the head of the humerus. (The shallow socket in the scapula that forms the shoulder joint.)
  • In a shoulder dislocation, the humeral head moves out of the glenoid fossa. (The bone of the upper arm leaves its normal position in the shallow socket.)

Advanced Usage

• "glenoid labrum": a ring of fibrocartilage that deepens the glenoid cavity, providing stability to the shoulder joint.

  • The glenoid labrum can be torn during a severe shoulder injury. (The cartilage rim around the socket is damaged.)

• "glenohumeral joint": the shoulder joint formed by the glenoid cavity and the humerus.

  • The glenohumeral joint is highly mobile but prone to dislocation. (The ball-and-socket joint of the shoulder.)

Variants and Related Words

• Glenoid (noun): the glenoid cavity itself (less common, usually used as an adjective).

  • The surgeon examined the glenoid for signs of arthritis. (The shallow socket of the scapula.)

• Glenohumeral (adj): relating to the glenoid cavity and the humerus.

  • Glenohumeral instability can cause recurrent shoulder dislocations. (Instability of the shoulder joint.)

Synonyms

• Shallow socket: a broad, concave depression in a bone.
• Cavity: a hollow space in the body (general term).

Related Idioms

• None common. "Glenoid" is a technical anatomical term and does not appear in idioms.

Phrasal Verbs

• None applicable. "Glenoid" is not a verb and does not form phrasal verbs.