epithelium
noun
any plant or animal tissue that covers a surface or lines a cavity, and that also performs any of various secretory, transporting, or regulatory functions.
The grammatical form denoting more than one person, place, thing, or idea.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Inwardly he was lined with cast-off epitheliums, as outwardly he was clad in the painter's discarded coats.
From The Troll Garden and Selected Stories by Willa Sibert Cather