吸气器,吸出器
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. 2. (Med.) An instrument for the evacuation of the fluid contents of tumors or collections of blood.
aspirator n : a pump that draws air or another gas through a liquid