Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Anatomy The cup-shaped cavity at the base of the hipbone into which the ball-shaped head of the femur fits.
  • n. Zoology The cavity in the body of an insect into which the leg fits.
  • n. Zoology A cup-shaped structure, such as the sucker of a tapeworm or leech.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a vinegar cup;
  • n. the socket of the hipbone;
  • n. a measure of about one eighth of a pint
  • n. The bony cup which receives the head of the thigh bone.
  • n. The cavity in which the leg of an insect is inserted at its articulation with the body.
  • n. A sucker of the sepia or cuttlefish and related animals.
  • n. The large posterior sucker of the leeches.
  • n. One of the lobes of the placenta in ruminating animals.

from the GNU version of the Collaborative International Dictionary of English

  • n. A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc.
  • n.
  • n. The bony cup which receives the head of the thigh bone.
  • n. The cavity in which the leg of an insect is inserted at its articulation with the body.
  • n. A sucker of the sepia or cuttlefish and related animals.
  • n. The large posterior sucker of the leeches.
  • n. One of the lobes of the placenta in ruminating animals.

from The Century Dictionary and Cyclopedia

  • n. In Roman antiquity: A vinegar-cup; a small wide-mouthed vessel of earthenware or metal, sometimes placed on the larger food-dishes, in which vinegar or other condiment was served. A dry or liquid measure, .0677 of a liter. Daremberg et Saglio. A similar cup or vessel used by jugglers in their feats.
  • n. In anatomy: The cavity of the os innominatum, or hip-bone, which receives the head of the femur; the cotyle, or cotyloid cavity, formed at the junction of the ilium, ischium, and pubis. See cuts under sacrarium, quarter, innominate. A cotyledon or lobe of the placenta of ruminating animals. In insects, the socket of the trunk in which the leg is inserted. A cup-like sucker, such as those with which the arms of the cuttlefish and other dibranchiate cephalopodous mollusks are provided. See cut under Sepia. A sessile or pedunculate sucker-like organ on the ventral surface of certain entozoa.
  • n. In botany: The cup- or saucer-like fructification of many lichens. The receptacle of certain fungi.
  • n. In music, an ancient instrument, made either of earthenware or of metal, used like a kettledrum or struck against another acetabulum after the manner of cymbals.
  • n. [capitalized] A genus of calcareous green algæ, Chlorophyceæ, found in tropical or subtropical waters: characterized by anerectaxis surmounted by a solid cap which consists of numerous radiating chambers. Also Acetabularia.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint

Etymologies

Latin acētābulum, vinegar cup, from acētum, vinegar; see acetum.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin acetabulum ("a little saucer for vinegar"), from acetum ("vinegar"), from acere ("to be sour") (Wiktionary)

Examples

  • My acetabulum has been a bit creaky, and my respiratory system is backed up with irritant. *sniff*

    This Office

  • It consists of three parts, the ilium, ischium, and pubis, which are distinct from each other in the young subject, but are fused in the adult; the union of the three parts takes place in and around a large cup-shaped articular cavity, the acetabulum, which is situated near the middle of the outer surface of the bone.

    II. Osteology. 6c. The Bones of the Lower Extremity. 1. The Hip Bone

  • Between the inferior gluteal line and the upper part of the acetabulum is a rough, shallow groove, from which the reflected tendon of the Rectus femoris arises.

    II. Osteology. 6c. The Bones of the Lower Extremity. 1. The Hip Bone

  • For instance, when Schreyer came to the hospital, she had fractured her acetabulum, which is where the femur meets the pelvis to form the hip joint.

    J. Weekly

  • The labrum is a piece of cartilage that goes around the mouth of the acetabulum, which is a cup.

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  • The labrum is a fibrous structure that surrounds the rim of the hip socket ( "acetabulum") and has an important sealing function that protects the cartilage layers of the hip like a "gasket seal."

    New Treatments for Hip Pain

  • ( "acetabulum") and has an important sealing function that protects the cartilage layers of the hip like a "gasket seal."

    The Full Feed from HuffingtonPost.com

  • He was taken to hospital where he was found to have suffered multiple fractures of the head of the right femur and of the acetabulum, the ball and socket of the hip joint.

    Archive 2009-02-01

  • The similarities observed between indriids and hominoids have a history of discussion given that, curiously, bipedal humans share a few features with indriids and other strepsirrhines, including their limb proportions and their low centre of gravity (close to the acetabulum).

    Literally, flying lemurs (and not dermopterans)

  • This method comprises all the conditions which are natural; for the body being suspended by its weight, produces extension, and the person suspended from him, along with the extension, forces the head of the thigh-bone to rise up above the acetabulum; and at the same time he uses the bone of the fore-arm as a lever, and forces the os femoris to slip into its old seat.

    On The Articulations

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