pi·las·ter
noun/pɪˈlæstə(r)/
/pɪˈlæstər/
(specialist)- a flat column that sticks out from the wall of a building, used as decoration
壁柱；半露柱 Word Originlate 16th cent.: from French pilastre, from Italian pilastro or medieval Latin pilastrum, from Latin pila ‘pillar’.