1. A mechanical device that moves fluid or gas by pressure or suction
   "The well pump drew water from deep underground"
    
2. A low-cut shoe without fastenings
   "She wore elegant black pumps with her evening dress"
    
3. The hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body
   "His pump was strong despite his advanced age";
   - heart, ticker [informal]

1. Raise (gases or fluids) with a pump
   "They pumped water from the well"; "The heart pumps blood through the body"
    
2. Move up and down
   "The athlete pumps weights in the gym"
    
3. Operate like a pump; move up and down, like a handle or a pedal
   "pump the gas pedal"
    
4. Draw or pour with a pump
   "We pumped gas into the car"; "They pumped the oil out of the ground"
    
5. Deliver forth
   "pump bullets into the dummy"
    
6. Supply in great quantities
   "Pump money into a project"
    
7. Flow intermittently
   "Blood pumped through his veins"
    
8. Question persistently
   "She pumped the witnesses for information"

Derived forms: pumps, pumping, pumped

Type of: blast, bring up, displace, draw, elevate, furnish, get up, gush, handle, internal organ, lift, manage, mechanical device, move, offer, provide, query, question, raise, render, shoe, shoot, spirt [archaic], spout, spurt, supply, take out, viscus, wield

Part of: cardiovascular system, circulatory system, cooling system, engine cooling system, fuel system

Encyclopedia: Pump