air-cell

Medical Dictionary

air cell n.

  1. A terminal dilation of the bronchiole where gas exchange is thought to occur.

  2. Spaces that contain air in the bones of the skull.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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