accelerograph

noun

ac·​cel·​ero·​graph

-rəˌgraf

plural -s

1

: an apparatus for measuring and recording the pressure developed by combustion of an explosive in a closed space

2

: an instrument for recording the acceleration in velocity of earthquake vibrations

Word History

Etymology

borrowed from French accélérographe, from accéléro- (as in accéléromètre accelerometer + -graphe -graph

First Known Use

1875, in the meaning defined at sense 1

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