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An apparatus for passing air or gases through or over certain liquids or solids, or for exhausting a closed vessel, by means of suction.

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  1. n. An apparatus for passing air or gases through or over certain liquids or solids, or for exhausting a closed vessel, by means of suction.
  2. n. An instrument for the evacuation of the fluid contents of tumors or collections of blood.
  3. n. a pump that draws air or another gas through a liquid
  4. 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. 2. (Med.) An instrument for the evacuation of the fluid contents of tumors or collections of blood.
  5. An apparatus for passing air or gases through or over certainliquids or solids, or for exhausting a closed vessel, by means ofsuction.
  6. n. a pump that draws air or another gas through a liquid