air pump

Definitions of air pump
  1. noun
    a pump that moves air in or out of something
    synonyms: vacuum pump
    see moresee less
    types:
    condensation pump, diffusion pump
    vacuum pump used to obtain a high vacuum
    inflater, inflator
    an air pump operated by hand to inflate something (as a tire)
    ion pump
    a vacuum pump that removes gas by ionizing the atoms or molecules and adsorbing them on a metal surface
    type of:
    pump
    a mechanical device that moves fluid or gas by pressure or suction
Word Family
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week

ACT

$29.95
  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week