antrum

antrum definition - medical

an·trum (ănˈtrəm)

noun pl. an·tra (-trə)
  1. A nearly closed cavity or chamber, especially in a bone.
  2. The pyloric end of the stomach, partially shut off during digestion from the cardiac end by sphincter muscles in the stomach wall.

Related Forms:

  • anˈtral (-trəl) adjective

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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