Definition of "accelerometer"

accelerometer

/æk.ˌsɛl.ə.ˈɹɑm.ə.tɚ/

noun
plural accelerometers
1. An instrument for measuring acceleration.
2. An instrument made for detecting and measuring vibrations.
  Quotations
  Working with NR, ScotRail and Porterbrook, Perpetuum has fitted sensors with gyroscopes and accelerometers to trains that are already in passenger service.
  2022 March 23, “Network News: Hitachi on-train track monitoring trial expands to Scottish routes”, in RAIL, number 953, page 13