WordReference Random House Unabridged Dictionary of American English © 2026
ac•cel•er•o•graph
(ak sel′ər ə graf′, -gräf′),USA pronunciation n.
- Geologyan accelerometer containing a pendulum device for measuring and recording ground motions produced by earthquakes.
- acceler(ation) + -o- + -graph 1905–10
'accelerograph' also found in these entries (note: many are not synonyms or translations):