a. The enlarged, saclike portion of the digestive tract, one of the principal organs of digestion, located in vertebrates between the esophagus and the small intestine.
b. A similar digestive structure of many invertebrates.
c. Any of the four compartments into which the stomach of a ruminant is divided.
2. The abdomen or belly.
3. An appetite for food.
4. A desire or inclination, especially for something difficult or unpleasant:had no stomach for quarrels.
5. Courage; spirit.
6. Obsolete Pride.
tr.v.stom·ached, stom·ach·ing, stom·achs
1. To bear; tolerate.
2. Obsolete To resent.
[Middle English, fromOld Frenchstomaque, estomac, fromLatinstomachus, fromGreekstomakhos, gullet, fromstoma, mouth.]
(click for a larger image)stomach
cutaway of an adult human stomach
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.