an instrument for measuring acceleration, as of aircraft or guided missiles.

1900–05; acceler(ation) + -o- + -meter Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
accelerometer (ækˌsɛləˈrɒmɪtə)
an instrument for measuring acceleration, esp of an aircraft or rocket

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
He made himself a fine little floater-type accelerometer.
The gauntlet uses an accelerometer to respond to arm movements for the actual
And the built-in accelerometer means the device automatically switches into
  portrait or landscape modes when rotated.
When an accelerometer in the mirror detects an impact, a call is automatically
  placed to the command center.
Related Words
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