columnar epithelium

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columnar epithelium

n.
Epithelium consisting of one or more cell layers, the most superficial of which is composed of elongated and somewhat cylindrical cells projecting toward the surface.
References in periodicals archive ?
Cube-shaped cells constitute the simple cuboidal epithelium while simple columnar epithelia (gastrointestinal tract) are built of column-shaped cells.
Initial matrix secretion by the columnar epithelia was indicated by the deposition of a non-cellular material that caused the separation of the adjacent basement lamina (Fig.