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epithelium

ep·i·the·li·um

epithelium

 
pronunciation:
e pih thi li m
features:
Word Combinations (noun), Word Parts
part of speech: noun
inflections: epithelia, epitheliums
definition: a protective, membranous layer of tissue, usu. a single layer of close-knit cells, that lines the cavities and the outside of an organism.
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derivations: epithelial (adj.), epithelioid (adj.)
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