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1. (n.) epithelium
any tissue layer covering body surfaces or lining the internal surfaces of body cavities, tubes, and hollow organs.
Etymology: (1740–50; < NL < Gk epi-epi - +thēl(ē) teat + NL -ium -ium2)
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| Definition of 'EPITHELIUM' |
Princeton's WordNet |
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1. (noun) epithelium, epithelial tissue
membranous tissue covering internal organs and other internal surfaces of the body
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| Definition of 'EPITHELIUM' |
Webster Dictionary |
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1. (noun) EPITHELIUM
the superficial layer of cells lining the alimentary canal and all its appendages, all glands and their ducts, blood vessels and lymphatics, serous cavities, etc. It often includes the epidermis (i. e., keratin-producing epithelial cells), and it is sometimes restricted to the alimentary canal, the glands and their appendages, -- the term endothelium being applied to the lining membrane of the blood vessels, lymphatics, and serous cavities
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| Definition of 'EPITHELIUM' |
U.S. National Library of Medicine |
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1. EPITHELIUM
One or more layers of EPITHELIAL CELLS, supported by the basal lamina, which covers the inner or outer surfaces of the body.
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Definitions of EPITHELIUM 
