epithelium

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English[edit]

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Etymology[edit]

Modern Latin epithēlium, from Ancient Greek ἐπί (epi, on, atop, epi-) + θηλή (thēlē, nipple).

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Noun[edit]

epithelium (plural epitheliums or epithelia)

  1. (anatomy) A membranous tissue composed of one or more layers of cells which forms the covering of most internal and external surfaces of the body and its organs: internally including the lining of vessels and other small cavities, and externally being the skin.
    • 1969, Vladimir Nabokov, Ada or Ardor, Penguin 2011, p. 25:
      the passenger's roving eyes paused for a moment as he listened inwardly to a nether itch, which he supposed to be (correctly, thank Log) only a minor irritation of the epithelium.

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