| 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. |
| 2. | (Med.) An instrument for the evacuation of the fluid contents of tumors or collections of blood. |
| Noun | 1. | aspirator - a pump that draws air or another gas through a liquid |
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