antrum

American  

[an-truhm] / ˈæn trəm /

noun

Anatomy.

plural

antra

1. a cavity in a body organ, especially a bone.

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antrum British  

/ ˈæntrəm /

noun

1. anatomy a natural cavity, hollow, or sinus, esp in a bone

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Other Word Forms

• antral adjective

Etymology

Origin of antrum

1720–30; < Latin < Greek ántron cave

Example Sentences

That similarity allowed the researchers to use the tiny stomachs as test subjects for human disease by injecting them with Helicobacter pylori, a bacterium that targets the antrum and can cause ulcers and stomach cancer.

From Nature

Unfortunately, Wells and his team of researchers were only able to grow part of the human stomach: the lower end, which goes by the name of "antrum" and connects to the intestine.

From The Verge

Sometimes the pain is referred also to the region of the antrum of Highmore and to the Eustachian tube and the middle ear.

From Project Gutenberg

I found the tumor occupying the whole of the antrum.

From Project Gutenberg

Upon general principles, since deformities of the head, face, jaws, nose, antra, vaults, &c., are common in neurotics and degenerates, stigmata of the ear-bones must occasionally take place.

From Project Gutenberg