from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of seismoscope.
Sorry, no etymologies found.
He placed seismoscopes -- earthquake recorders -- in hundreds of Southern California buildings to see how they reacted when shaken.
The observatories at Alessandria, Milan, Monza, Parma, Florence, and other places in Italy contained seismoscopes and other pendulums, and these all registered the fact that an earthquake had occurred, and in many cases traced a series of elliptical or elongated curves.