Английский разговорный словарь (основной) - hopper(1)

n. 1 a person who hops. 2 a hopping arthropod, esp. a flea or cheese-maggot or young locust. 3 a a container tapering downward (orig. having a hopping motion) through which grain passes into a mill. b a similar contrivance in various machines. 4 a a barge carrying away mud etc. from a dredging-machine and discharging it. b a railway truck able to discharge coal etc. through its floor.