acetabulum
Definition
Noun: * Anatomy: The cup-shaped socket in the pelvis (specifically, the hip bone) that receives and articulates with the rounded head of the femur (thigh bone), forming the hip joint.
Examples of Usage
- Noun:
- The surgeon carefully examined the acetabulum for signs of fracture.
- In a healthy hip, the head of the femur rotates smoothly within the acetabulum.
- Osteoarthritis can cause the cartilage lining the acetabulum to wear down.
Advanced Usage
- Acetabular (adjective): Pertaining to the acetabulum.
- The patient underwent surgery to repair an acetabular labral tear.
Variants and Related Words
- Hip socket: A common descriptive synonym for the acetabulum.
- Cotyloid cavity: An older, less common anatomical term for the acetabulum.
Synonyms
- Hip socket
Notes on Meaning
This is a specialized anatomical term with a single, precise meaning. It is not used in everyday conversation but is standard in medical, biological, and anatomical contexts.
Noun
-
the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint
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