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Related to acetabulum: hip joint
n. pl. ac·e·tab·u·la (-lə)
1. Anatomy The cup-shaped cavity at the base of the hipbone into which the ball-shaped head of the femur fits.
2. Zoology A cavity or socket in the body of an insect into which an appendage fits.
3. Zoology A cup-shaped structure, such as the sucker of a tapeworm or leech.
[Latin acētābulum, vinegar cup, from acētum, vinegar; see acetum.]
ac′e·tab′u·lar (-lər) adj.
n, pl -la (-lə)
1. (Anatomy) the deep cuplike cavity on the side of the hipbone that receives the head of the thighbone
2. (Zoology) a round muscular sucker in flatworms, leeches, and cephalopod molluscs
3. (Zoology) the aperture in the thorax of an insect that holds the leg
[Latin: vinegar cup, hence a cuplike cavity, from acētum vinegar + -abulum, suffix denoting a container]
ac•e•tab•u•lum(ˌæs ɪˈtæb yə ləm)
n., pl. -la (-lə)
1. the socket in the hipbone that connects with the head of the femur to form the hip joint.
2. any of the suction appendages of a leech, octopus, etc.
3. the depression on the body into which an insect's leg fits.
[1660–70; < Latin: hip socket]
acetabulum- The socket of the hip bone, into which the head of the femur fits.
See also related terms for socket.
A socket in the hip bone to take the rounded head of the femur.
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|Noun||1.||acetabulum - the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint|
hipbone, innominate bone - large flaring bone forming one half of the pelvis; made up of the ilium and ischium and pubis
socket - a bony hollow into which a structure fits
n. acetábulo, hueso cóncavo de la cadera.