from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The scientific study and recording of earthquakes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The numerical or spatial measurement of earthquakes.
from the GNU version of the Collaborative International Dictionary of English
- n. The mensuration of such phenomena of earthquakes as can be expressed in numbers, or by their relation to the coördinates of space.
from The Century Dictionary and Cyclopedia
- n. The theory and use of the seismometer; more generally, the scientific study of earthquake phenomena by the aid of observations made either with or without the use of seismometric instruments.
Sorry, no etymologies found.
Opportunity also conducted a Mars seismometry experiment on Sol 1915 (June 13, 2009).