isthmi

Variant of isthmus

isthmus definition

isth·mus (is′məs)

noun pl. isthmuses -·muses or isthmi -·mi′ (-mī′)

  1. a narrow strip of land having water at each side and connecting two larger bodies of land
  2. Anat.
    1. a narrow strip of tissue connecting two larger parts of an organ the isthmus of the thyroid
    2. a narrow passage between two larger cavities the isthmus of the fallopian tubes

Etymology: L < Gr isthmos, a neck, narrow passage, isthmus

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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