The Collaborative International Dictionary
four-pounder \four-pounder\ n. a cannon that throws a 4-pound shot.
WordNet
n. an artillery gun that throws a shot weighing four pounds
Usage examples of "four-pounder".
Sharpe had seen the four-pounder fire, watched the horsemen cut down in a bloody swathe, then he had turned to the Chasseurs attacking his own formation.
On deck the foretopmen had set the elm-tree pump a-wheezing, while the fo'c'slemen washed the fo'c'sle with the fresh sea-water they pumped, the maintopmen washed the starboard side of the quarter-deck and the quarter-deck men all the rest, grinding away with holystones until the water ran like thin milk from the admixture of minute raspings of wood and caulking, and the boys and the idlers - the people who merely worked all day - heaved at the chain-pumps to clear the night's water out of the bilges, and the gunner's crew cosseted the fourteen four-pounders.