accelerometer

from WordNet (r) 3.0 (2006)
accelerometer
    n 1: an instrument for measuring the acceleration of aircraft or
         rockets
    
from The Collaborative International Dictionary of English v.0.48
Accelerometer \Ac*cel`er*om"e*ter\, n. [Accelerate + -meter.]
   An apparatus for measuring the velocity imparted by
   gunpowder.
   [1913 Webster]
    

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