breastwork

English Thesaurus

1. fortification consisting of a low wall (noun.artifact)

hypernym	:	fortification, munition,
definition	:	defensive structure consisting of walls or mounds built around a stronghold to strengthen it (noun.artifact)

hyponym	:	machicolation,
definition	:	a projecting parapet supported by corbels on a medieval castle; has openings through which stones or boiling water could be dropped on an enemy (noun.artifact)