'Pontvolant' definitions:

Definition of 'Pontvolant'

From: GCIDE

Pontvolant \Pont`vo*lant"\ (?; F. ?), n. [F. pont bridge + volant flying.] (Mil.) A kind of light bridge, used in sieges, for surprising a post or outwork which has but a narrow moat; a flying bridge. [1913 Webster]