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antrum

antrum (an-trŭm) n.
1. a cavity, especially a cavity in a bone. a. of Highmore the maxillary sinus (see paranasal sinuses). [ N. Highmore (1613–85), English physician] mastoid (or tympanic) a. the space connecting the air cells of the mastoid process with the chamber of the inner ear.

2. the part of the stomach adjoining the pylorus.

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antrum

an·trum / ˈantrəm/ • n. (pl. -tra / -trə/ ) Anat. a natural chamber or cavity in a bone or other anatomical structure. ∎  the part of the stomach just inside the pylorus. DERIVATIVES: an·tral / -trəl/ adj.

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"antrum." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 11 Dec. 2017 <http://www.encyclopedia.com>.

"antrum." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 11, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/antrum

"antrum." The Oxford Pocket Dictionary of Current English. . Retrieved December 11, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/antrum