(n.) An apparatus for registering the shocks and undulatory motions of earthquakes.
Example Sentences:
(1) In spite of this, the scope of its uses continues to increase and it remains an indispensable instrument of neurophysiological diagnosis, especially in its capacity as a 'seismograph' of the brain.
(2) Looking at the bizarre, sinister world of North Korea’s leadership, it is almost anyone’s guess why the world’s most reclusive regime decided to mark the new year by exploding a device it claimed was a hydrogen bomb , sending seismographs quivering and unleashing new tensions in international relations.
(3) These quakes were substantial – measuring magnitude five – but had been invisible because they did not show up on seismographs.
(4) That morning the USGS servers received data from various seismographs, translated them into figures and sent them over the net to the journalist’s personal computer.
(5) The first explosion was registered on the seismograph at the University of Mexico at 05 h 44 min 52 s and was followed by a dozen explosions within the next hour, some of them of BLEVE type (Boiling Liquid Expanding Vapour Explosion) due to rupture of one or more storage tanks.
(6) Political volcanologists watching for eruptions should be turning their seismographs on the NHS.