[ ab-dom-uh-nl ]
/ æbˈdɒm ə nl /


of, in, on, or for the abdomen: abdominal wall; abdominal pains.


Usually abdominals. Informal. the abdominal muscles.

Nearby words

  1. abdication,
  2. abdicative,
  3. abdom.,
  4. abdomen,
  5. abdomin-,
  6. abdominal angina,
  7. abdominal cavity,
  8. abdominal crunch,
  9. abdominal external oblique muscle,
  10. abdominal fissure

Origin of abdominal

1740–50; < Latin abdōmin-, stem of abdōmen abdomen + -al1

Related formsab·dom·i·nal·ly, adverbpost·ab·dom·i·nal, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for abdominal

Word Origin and History for abdominal



1550s, from medical Latin abdominalis, from abdomen (genitive abdominis); see abdomen.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for abdominal


[ ăbdə-mən ]

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.
In arthropods, the last, most posterior segment of the body.
Related formsabdominal adjective (ăb-dŏmə-nəl)

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.