acetabulum

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acetabulum

[‚a·sə′tab·yə·ləm]
(anatomy)
A cup-shaped socket on the hipbone that receives the head of the femur.
(invertebrate zoology)
A cavity on an insect body into which a leg inserts for articulation.
The sucker of certain invertebrates such as trematodes and tapeworms.
References in periodicals archive ?
In our present case, arthroscopic resection was considered first but the location and the depth of the lesion and its protrusion through the acetabular fossa made us change our strategy.
(21) Any additional ossification or enlargement of this ossicle leads to further deepening of the acetabular fossa, worsening the impingement problem.
An anteroposterior plain radiograph of the hip indicated enlargement of the acetabular fossa of the affected hip (Figure 1).