Biology. being or relating to an epithelium, any tissue that lines a cavity or covers a surface in an animal or plant: Cheek epithelial cells are often studied in school labs as they are easily obtained through a mouth rinse or swab.
- in·ter·ep·i·the·li·al, adjective
- non·ep·i·the·li·al, adjective
- sub·ep·i·the·li·al, adjective
- un·ep·i·the·li·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use epithelial in a sentence
These neurons have microscopic finger-like protrusions called cilia, which float in the mucus covering the surface of the nasal epithelium.
The area at the back of the nose, the olfactory epithelium, that has the cells that translate this odor molecule into experience of smelling something, you know, that area has hundreds of millions of cells in the dog, 300 million.Forget Everything You Know About Your Dog (Ep. 436) | Stephen J. Dubner | October 22, 2020 | Freakonomics
(a) epithelial casts contain epithelial cells from the renal tubules.
Any epithelial cell may be so granular from degenerative changes that the nucleus is obscured.
The meshes also contain leukocytes, epithelial cells, and granular dbris.