waist

waist definition - medical

waist (wāst)

noun
  1. The part of the human trunk between the bottom of the rib cage and the pelvis.
  2. The middle section or part of an object, especially when narrower than the rest.

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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