A covered passage across a ditch round a fort.
More example sentences
- This is the view from the north caponier along the curtain wall, made of flint reinforced with brick.
- These lead to the barrack block and caponiers with stairs to the mortar batteries and chemain de ronde.
- The left and right caponiers covered the area extending from the flanks to the back of the fort.
late 17th century: from Spanish caponera, literally 'capon enclosure'.