aspirator

from WordNet (r) 3.0 (2006)
aspirator
    n 1: a pump that draws air or another gas through a liquid
from The Collaborative International Dictionary of English v.0.48
Aspirator \As"pi*ra`tor\, n.
   1. (Chem.) An apparatus for passing air or gases through or
      over certain liquids or solids, or for exhausting a closed
      vessel, by means of suction.
      [1913 Webster]

   2. (Med.) An instrument for the evacuation of the fluid
      contents of tumors or collections of blood.
      [1913 Webster]
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