Definition of pump noun from the Oxford Advanced American Dictionary

     

    pump

     noun
    noun
    NAmE//pʌmp//
     
     
    jump to other results
  1. 1a machine that is used to force liquid, gas, or air into or out of something Some gas stations have the same kind of pump and nozzle. a gas pump a foot/hand pump (= that you work by using your foot or hand) a bicycle pump see also stomach pump
  2. 2a woman's formal shoe that is plain and does not cover the top part of the foot
  3. Idioms
    prime the pump
     
    jump to other results
    to encourage the growth of a new or weak business or industry by putting money into it
See the Oxford Advanced Learner's Dictionary entry: pump