Definitions

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

  • noun The serous membrane that lines the walls of the abdominal cavity and folds inward to enclose the viscera.

from The Century Dictionary.

  • noun The membrane lining the abdominal cavity and investing its viscera.
  • noun In brachiopods, an investment of the alimentary canal, by which the latter is suspended in the perivisceral cavity as by a mesentery.
  • noun In entomology, the outer coat of the digestive tube of an insect.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) The smooth serous membrane which lines the cavity of the abdomen, or the whole body cavity when there is no diaphragm, and, turning back, surrounds the viscera, forming a closed, or nearly closed, sac.

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

  • noun anatomy In mammals, the serous membrane lining the cavity of the abdomen and that is folded over the viscera.
  • noun zoology In animals, the membrane lining the coelom cavity.

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

  • noun a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera

Etymologies

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

[Middle English, from Late Latin peritonaeum, from Greek peritonaion, from peritonaios, stretched across, from peritonos, stretched around : peri-, peri- + teinein, to stretch; see ten- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek περί- (peri, "around") + τόνος (tonos, "stretch") + -αιος (-aios, "suffix to form an adjective").

Support

Help support Wordnik (and make this page ad-free) by adopting the word peritoneum.

Examples

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

  • The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity.

    Balkinization 2007

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • "Here is Virgil ... who probably preferred a lad's peritonium."

    - Nabokov

    March 1, 2011