Medical Dictionary
stomach
noun stom·ach \ˈstəm-ək, -ik\
Medical Definition of STOMACH
1
a : a saclike expansion of the alimentary canal of a vertebrate communicating anteriorly with the esophagus and posteriorly with the duodenum and being typically a simple often curved sac with an outer serous coat, a strong complex muscular wall that contracts rhythmically, and a mucous lining membrane that contains gastric glands b : one of the compartments of a ruminant stomach <the abomasum is the fourth stomach of a ruminant>
2
: a cavity in an invertebrate animal that is analogous to a stomach
Illustration of STOMACH
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