Acetabulum



Anatomy. the socket in the hipbone that receives the head of the thighbone.
Zoology. any of the suction appendages of a leech, octopus, etc.
Historical Examples

Hemorrhages were found beneath the periosteum in the region of the lower incisor teeth and the acetabulum and ribs.
Scurvy Past and Present Alfred Fabian Hess

The large, round head of this bone is placed in the acetabulum.
A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) Calvin Cutter

In the pelvis the acetabulum is perforate (in Echidna), as in Sauropsida.
The Cambridge Natural History, Vol X., Mammalia Frank Evers Beddard

The acute character of the lameness will vary in degree as the seat of the lesion approximates the acetabulum.
Special Report on Diseases of the Horse United States Department of Agriculture

The obturator foramen is a small oval opening posteroventral to the acetabulum between the ischium and the pubis.
Variation in the Muscles and Nerves of the Leg in E. Bruce Holmes

A less formidable proceeding may be useful in cases where the acetabulum is diseased, but not deeply.
A Manual of the Operations of Surgery Joseph Bell

All except the epipubis take part in the formation of the acetabulum, which is perforated by a prominent hole.
The Vertebrate Skeleton Sidney H. Reynolds

Fracture of the upper and back part of the rim of the acetabulum may accompany or simulate dorsal dislocation of the hip.
Manual of Surgery Volume Second: Extremities–Head–Neck. Sixth Edition. Alexander Miles

The femur (fig. 40, B, 12) is a short thick bone, with a prominent rounded head articulating with the acetabulum.
The Vertebrate Skeleton Sidney H. Reynolds

The broadening of the trochanteric region is greater, and the great trochanter is approximated to the acetabulum.
Manual of Surgery Volume Second: Extremities–Head–Neck. Sixth Edition. Alexander Miles

noun (pl) -la (-lə)
the deep cuplike cavity on the side of the hipbone that receives the head of the thighbone
a round muscular sucker in flatworms, leeches, and cephalopod molluscs
the aperture in the thorax of an insect that holds the leg

acetabulum ac·e·tab·u·lum (ās’ĭ-tāb’yə-ləm)
n. pl. ac·e·tab·u·la (-lə)
The cup-shaped cavity at the base of the hipbone into which the ball-shaped head of the femur fits. Also called cotyloid cavity.
ac’e·tab’u·lar adj.

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