(informal) Agent noun of bed-hop: one who bed-hops; a person who is promiscuous or has multiple sexual partners.

(mineralogy) A mineral crystal whose interior space is empty

A rake in a mill, moving in a circle to spread meal for drying, and to draw it over an opening in the floor, through which it falls.

(UK, Cockney rhyming slang) A police officer.

plural of hopper car

(rail transport, US) A railroad freight car which is used to transport bulk materials in a hopper, the load being usually discharged through the bottom of the car.

(rail transport, UK) a railway goods wagon which is used to transport bulk materials in a hopper, the load being usually discharged through the bottom of the wagon.

plural of hopper wagon

plural of hopper boy

plural of hopper crystal