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fossa definition

fossa (fäs′ə, fôs′ə)

noun pl. fossae -·sae (-ē, -ī)

Anat. a cavity, pit, or small hollow

Etymology: ModL < L, a ditch, trench < fossus: see fossil

Related Forms:

  • fossate fos′·sate′ (-āt′, -it) adjective

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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