Lexic.us

Definition of Epithelium

1. Noun. Membranous tissue covering internal organs and other internal surfaces of the body.

Definition of Epithelium

1. n. 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.

Definition of Epithelium

1. [n -LIA or -LIUMS]

Medical Definition of Epithelium

1. The covering of internal and external surfaces of the body, including the lining of vessels and other small cavities. It consists of cells joined by small amounts of cementing substances. Epithelium is classified into types on the basis of the number of layers deep and the shape of the superficial cells. Origin: Gr. Thel = nipple This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Epithelium

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