Source : Webster's Revised Unabridged Dictionary (1913)

   Note: for various kinds of pumps, see {Air pump}, {Chain
         pump}, and {Force pump}; also, under {Lifting},
         {Plunger}, {Rotary}, etc.

   {Circulating pump} (Steam Engine), a pump for driving the
      condensing water through the casing, or tubes, of a
      surface condenser.

   {Pump brake}. See {Pump handle}, below.

   {Pump dale}. See {Dale}.

   {Pump gear}, the apparatus belonging to a pump. --Totten.

   {Pump handle}, the lever, worked by hand, by which motion is
      given to the bucket of a pump.

   {Pump hood}, a semicylindrical appendage covering the upper
      wheel of a chain pump.

   {Pump rod}, the rod to which the bucket of a pump is
      fastened, and which is attached to the brake or handle;
      the piston rod.

   {Pump room}, a place or room at a mineral spring where the
      waters are drawn and drunk. [Eng.]

   {Pump spear}. Same as {Pump rod}, above.

   {Pump stock}, the stationary part, body, or barrel of a pump.
      

   {Pump well}. (Naut.) See {Well}.

Circulate \Cir"cu*late\, v. t.
   To cause to pass from place to place, or from person to
   person; to spread; as, to circulate a report; to circulate
   bills of credit.

   {Circulating pump}. See under {Pump}.

   Syn: To spread; diffuse; propagate; disseminate.