epitheliumn.
/ɛpɪˈθiːlɪəm/ 1. Anatomy. A non-vascular tissue forming the outer layer of the mucous membrane in animals.
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the world > life > the body > bodily substance > membrane > [noun] > mucous > part of
epithelium1749
mucosa1867
perithelium1876
1749 D. Hartley Observ. Man i. ii. 117 The Impressions can easily penetrate the soft Epithelium.
1842 J. C. Prichard Nat. Hist. Man (1845) 87 The different appearances of the epithelia or outer membranous linings of all the surfaces.
1873 St. G. Mivart Lessons Elem. Anat. vii. 237 The superficial layer of the skin so reflected inwards is termed epithelium, which is thus but a modified epidermis.
2. Botany. An epidermis consisting of young thin-sided cells, filled with homogeneous transparent colourless sap. ( Treasury Bot.)
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1861 R. Bentley Man. Bot. i. i. 41 The canal of the style, and the stigma of Flowering Plants are also covered by a modified epidermis..to which the name of Epithelium has been given by Schleiden.
This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2018).
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