noun
1. : a vertical-piston usually duplex pump whose valves are in the piston or pistons
2. : chain pump
3. : a hand-operated force pump commonly used for spraying with liquids contained in a bucket
noun
1. : a vertical-piston usually duplex pump whose valves are in the piston or pistons
2. : chain pump
3. : a hand-operated force pump commonly used for spraying with liquids contained in a bucket
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012