Origin: Latin suffix -tion
Machicolation has 2 different meanings across 1 category:
a projecting parapet supported by corbels on a medieval castle; has openings through which stones or boiling water could be dropped on an enemy
An opening between corbels that support a projecting parapet, or in the floor of a gallery or the roof of a portal, of a fortified building from which missiles can be shot or heated items dropped upon assailants attacking the base of the walls.