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decelerometer

[dee-sel-uh-rom-i-ter]
noun
  1. a device that measures the rate of deceleration, as of a vehicle.

Origin of decelerometer

First recorded in 1920–25; deceler(ation) + -o- + -meter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for decelerometer

decelerometer

noun
  1. an instrument for measuring deceleration
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012