Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

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

from The Century Dictionary.

  • noun 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.
  • noun 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.
  • noun In botany: The cup- or saucer-like fructification of many lichens. The receptacle of certain fungi.
  • noun 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.
  • noun [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 the GNU version of the Collaborative International Dictionary of English.

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

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

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

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

Etymologies

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

[Latin acētābulum, vinegar cup, from acētum, vinegar; see acetum.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Latin acetabulum ("a little saucer for vinegar"), from acetum ("vinegar"), from acere ("to be sour")

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

  • 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."

    Dr. Josh Dines and Dr. Rock Positano: 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

  • ( "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

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