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lesene

n. (context architecture English) A low-relief, vertical pillar or pilaster in a wall, usually without a base or capital; used in architecture to divide a facade or other wall surface optically.

Wikipedia
Lesene

A lesene – also called a pilaster strip – is an architectural term for a narrow, low-relief, vertical pillar in a wall. It resembles a pilaster, but does not have a base or capital.