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accelerograph
noun
ac·cel·ero·graph
\-rəˌgraf\
Definition of accelerograph
-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
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Origin and Etymology of accelerograph
borrowed from French accélérographe, from accéléro- (as in accéléromètre accelerometer + -graphe -graph
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