Shaped like or arranged in the form of a column or columns; tall and slender with a vertical arrangement.
From Latin 'columna' + the suffix '-ar' meaning 'of or relating to.' Commonly used in architecture, botany, and cellular biology.
Columnar epithelium is what lines your digestive tract—the cells are tall and thin like columns, which lets them absorb nutrients way more efficiently than squat cells would.
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