[ab-duh-muhn, ab-doh-]
Anatomy, Zoology.
the part of the body of a mammal between the thorax and the pelvis; belly.
the cavity of this part of the body containing the stomach, intestines, etc.
(in nonmammalian vertebrates) a region of the body corresponding to, but not coincident with, this part or cavity.
Entomology. the posterior section of the body of an arthropod, behind the thorax or the cephalothorax.

1535–45; (< Middle French) < Latin abdōmen belly

postabdomen, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To abdomen
World English Dictionary
abdomen (ˈæbdəmən, æbˈdəʊ-)
1.  the region of the body of a vertebrate that contains the viscera other than the heart and lungs. In mammals it is separated from the thorax by the diaphragm
2.  the front or surface of this region; bellyRelated: coeliac
3.  (in arthropods) the posterior part of the body behind the thorax, consisting of up to ten similar segments
Related: coeliac
[C16: from Latin; origin obscure]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

1540s, "belly fat," from L. abdomen (gen. abdominis) "belly," originally "lower belly," perhaps from abdere "conceal," with a sense of "concealment of the viscera," or else "what is concealed" by proper dress. Purely anatomical sense is from 1610s. Biological sense of "posterior division of the bodies
of arthropods" first recorded 1788.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

abdomen ab·do·men (āb'də-mən, āb-dō'mən)
The part of the body that lies between the chest and the pelvis and encloses the stomach, intestines, liver, spleen, and pancreas. Also called belly, venter.

ab·dom'i·nal (āb-dŏm'ə-nəl) adj.
ab·dom'i·nal·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
abdomen   (āb'də-mən)  Pronunciation Key 
  1. In vertebrates, the portion of the body between the thorax and pelvis, containing the stomach, intestines, liver, and other organs. In mammals, the abdomen is separated from the thorax by the diaphragm.

  2. In arthropods, the last, most posterior segment of the body.

abdominal adjective (āb-dŏm'ə-nəl)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary
abdomen [(ab-duh-muhn, ab-doh-muhn)]

The part of the body between the thorax (chest) and pelvis that encloses the organs of the abdominal cavity; the belly.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Example sentences
Groin pain refers to discomfort in the area where the abdomen ends and the legs
Sometimes the surgeon will place a tube from your stomach through the abdomen
  wall to keep your stomach in place.
Almost everyone experiences pain in the abdomen at one time or another.
As the mosquito feeds, our own body heat triggers the botfly eggs glued to her
  abdomen to hatch.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature