plural antra
ˈan-trə 
: an anatomical cavity within a bone (such as the maxilla) or hollow organ (such as the stomach)
Examples of antrum in a Sentence
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The closer a pill lands to the antrum, the last part of the stomach before the intestine, the faster the pill begins to dissolve and find its way through the pylorus into the duodenum, the first part of the small intestine.
—
Scott Lafee, San Diego Union-Tribune, 20 Sep. 2022
Tantrum, schm-antrum.
—Bernhard Warner, Fortune, 23 Sep. 2021
Each outpouching was shaped like a slice of pie, with the apex located at the antrum.
—Ncbi Rofl, Discover Magazine, 12 July 2011
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Scott Lafee, San Diego Union-Tribune, 20 Sep. 2022
Tantrum, schm-antrum.
—Bernhard Warner, Fortune, 23 Sep. 2021
Each outpouching was shaped like a slice of pie, with the apex located at the antrum.
—Ncbi Rofl, Discover Magazine, 12 July 2011
Cite this Entry
“Antrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antrum. Accessed 31 Oct. 2025.
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