Bar·ba·can n. See Barbican.
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Bar·bi·can Bar·ba·can n.
1. Fort. A tower or advanced work defending the entrance to a castle or city, as at a gate or bridge. It was often large and strong, having a ditch and drawbridge of its own.
2. An opening in the wall of a fortress, through which missiles were discharged upon an enemy.
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barbacan
n : a tower that is part of a defensive structure (such as a
castle) [syn: barbican]