ACCELEROMETER

accelerometer

(noun) an instrument for measuring the acceleration of aircraft or rockets

Source: WordNet® 3.1

Etymology

Noun

accelerometer (plural accelerometers)

An instrument for measuring acceleration.

An instrument made for detecting and measuring vibrations.

Source: Wiktionary

Ac*cel`er*om"e*ter, n. Etym: [Accelerate + -meter.]

Definition: An apparatus for measuring the velocity imparted by gunpowder.

Source: Webster’s Unabridged Dictionary 1913 Edition