from the GNU version of the Collaborative International Dictionary of English
- n. A seismometer for measuring amplitudes or periods, or both, of microseisms.
from The Century Dictionary and Cyclopedia
- n. An apparatus for detecting slight earth-tremors, and showing their direction, intensity, and duration.
Sorry, no etymologies found.
Sorry, no example sentences found.
Wordnik is becoming a not-for-profit! Read our announcement here.