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WordNet 3.0Copyright Princeton University
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n. - The layer of flat cells that lines the embryonic body cavity

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Usage examples (40)
  • The mesothelium is a membrane that covers and protects most of the internal organs of the body.
  • These cells form to create the mesothelium, which is the major tissue layer of the serous membranes.
  • In medical terms, it is a cancer formed in the mesothelium, which is a direct consequence of prolonged asbestos exposure.
  • Mesothelioma cancer of the mesothelium is a disease in which cells of the mesothelium become abnormal and divide without control or order.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.