资料来源 : Webster's Revised Unabridged Dictionary (1913)

   3. (Chem.) An apparatus for receiving and condensing the
      volatile products of distillation to a liquid or solid
      form, by cooling.

   4. (Steam Engine) An apparatus, separate from the cylinder,
      in which the exhaust steam is condensed by the action of
      cold water or air. See Illust. of {Steam engine}.

   {Achromatic condenser} (Optics), an achromatic lens used as a
      condenser.

   {Bull's-eye condenser}, or {Bull's-eye} (Optics), a lens of
      short focal distance used for concentrating rays of light.
      

   {Injection condenser}, a vessel in which steam is condensed
      by the direct contact of water.

   {Surface condenser}, an apparatus for condensing steam,
      especially the exhaust of a steam engine, by bringing it
      into contact with metallic surface cooled by water or air.