An apparatus for removing fluid, air, or tissue by aspiration from any of the body cavities; it consists usually of a hollow needle or trocar and cannula, connected by tubing with a container vacuumized by a syringe or reversed air (suction) pump.
- vacuum a. an instrument for removing the products of conception by suction after cervical dilation.
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as·pi·ra·tor 'as-pə-.rāt-ər n an apparatus for producing suction or moving or collecting materials by suction esp a hollow tubular instrument connected with a partial vacuum and used to remove fluid or tissue or foreign bodies from the body
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as·pi·ra·tor (as″pĭ-raґtər) an apparatus used for removal by suction of fluids or gases contained within a cavity.Medical dictionary. 2011.