1. seismograph

noun. a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake).


  • measuring device
  • measuring system


  • -graph (English)
  • seismo- (English)
  • σεισμός (Ancient Greek (to 1453))

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Example sentences of the word seismograph

1. Noun, singular or mass
Insert a jagged line into the diagonal line so that it looks like a seismograph reading.

2. Adjective
Visit the Exploratorium science museum on the Embarcadero and check out its seismograph exhibit.