The Collaborative International Dictionary
Mitrailleur
Mitrailleur \Mi`tra`illeur"\, n. [F.]
(Mil.) One who serves a mitrailleuse.
A mitralleuse.
Wiktionary
mitrailleur
n. 1 (context UK military obsolete English) A rapid-fire team-served musket or rifle. 2 (context UK military obsolete English) The person in charge of such a weapon.