Meaning of PILASTER in English

PILASTER

noun Etymology: Middle French pilastre, from Italian pilastro Date: 1575 an upright architectural member that is rectangular in plan and is structurally a pier but architecturally treated as a column and that usually projects a third of its width or less from the wall

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.