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abdominal

[ab-dom-uh-nl]
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adjective
  1. of, in, on, or for the abdomen: abdominal wall; abdominal pains.
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noun
  1. Usually abdominals. Informal. the abdominal muscles.
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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. 2018

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Word Origin and History for abdominal

adj.

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

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Online Etymology Dictionary, © 2010 Douglas Harper

abdominal in Science

abdomen

[ăbdə-mən]
  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.
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Related formsabdominal adjective (ăb-dŏmə-nəl)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.