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epithelium definition

epi·theli·um (ep′i t̸hē′lē əm)

noun pl. epitheliums -·li·ums or epithelia -·lia (-ə)

cellular tissue covering external body surfaces, as the epidermis, or lining internal surfaces, as hollow organs, vessels, etc.: it consists of one or more layers of cells with little intercellular material

Etymology: ModL < Gr epi-, upon + thēlē, nipple: see female

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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