[1] : The Collaborative International Dictionary of English v.0.48

throttle \throt"tle\, n. dim. of throat. see throat.
   1. the windpipe, or trachea; the weasand. --sir w. scott.
      1913 webster

   2. steam engine the throttle valve.
      1913 webster

   throttle lever steam engine, the hand lever by which a
      throttle valve is moved, especially in a locomotive.

   throttle valve steam engine, a valve moved by hand or by
      a governor for regulating the supply of steam to the steam
      chest. in one form it consists of a disk turning on a
      transverse axis.
      1913 webster
see also:
throat throttle lever throttle valve 

[2] : WordNet (r) 2.0

throttle valve
     n : a valve that regulates the supply of fuel to the engine
         syn: accelerator, throttle
see also:
accelerator throttle 

Valve >> V Words
Valve, definition of term: Valve
valve_pag1.html

Throttle >> T Words
Throttle, definition of term: Throttle
throttle_pag1.html

Tricuspid Valve >> T Words
Tricuspid Valve, definition of term: Tricuspid Valve
tricuspid+valve_pag1.html

Safety Valve >> S Words
Safety Valve, definition of term: Safety Valve
safety+valve_pag1.html

Relief Valve >> R Words
Relief Valve, definition of term: Relief Valve
relief+valve_pag1.html

Ball Valve >> B Words
Ball Valve, definition of term: Ball Valve
ball+valve_pag1.html

Bicuspid Valve >> B Words
Bicuspid Valve, definition of term: Bicuspid Valve
bicuspid+valve_pag1.html

Globe Valve >> G Words
Globe Valve, definition of term: Globe Valve
globe+valve_pag1.html

Mitral Valve >> M Words
Mitral Valve, definition of term: Mitral Valve
mitral+valve_pag1.html

Mitral Valve Pr >> M Words
Mitral Valve Pr, definition of term: Mitral Valve Pr
mitral+valve+pr_pag1.html