In the British service, a gunner or a gunner's mate; one of the soldiers in a train of artillery, who assisted the gunners in loading, firing, and sponging the guns.(noun)
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Use "matross" in a sentence
"Fourth: you really blew it after that: and each private or matross shall furnish himself with all the equipements of a private in the infantry, until proper ordnance and field artillery is provided."
""Hurrah for the Hymns!" cheered Brereton, as a number of the gunners and matross men dropped, and the remainder, deserting the cannon, fell back on the infantry."
"'No danger now,' saith the gunner, 'but begone, for there are five more charging,' which was true; for two hours after those cannons were discharged, and unluckily killed our cannoneer and matross."