- The definition of listel is a architectural term for a narrow edge, border or molding.
An example of a listel is a decorative border around the ceiling inside a Victorian style house.
listel definition by Webster's New World
Origin: French ; from Italian listello, diminutive of lista, a border, strip ; from Germanic an unverified form lista: see list
listel definition by American Heritage Dictionary
Origin: French, from Italian listello, diminutive of lista, border, of Germanic origin.