Dictionary
seis•mic
Pronunciation: (sīz'mik, sīs'-), [key]—
adj.
pertaining to, of the nature of, or caused by an earthquake or vibration of the earth, whether due to natural or artificial causes.
Also,seis'mal,seis'mi•cal.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.