isthmus

isthmus definition - medical

isth·mus (ĭsˈməs)

noun pl. isth·mus·es or isth·mi (-mīˌ)
A constriction or narrow passage connecting two larger parts of an organ or other anatomical structure.

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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