ac·cel·ero·gram | \ ik-ˈse-lə-rə-ˌgram 
, ak- \
, ak- \ plural accelerograms
Definition of accelerogram
geology
: a record of an earthquake generated by an accelerograph At present, existing accelerograms are being studied by several groups in an effort to extract as much information as possible concerning source mechanisms and wave propagation close to faults.— David M. Boore, Geotimes, January 1975
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Time Traveler for accelerogram
The first known use of accelerogram was in 1931
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