/ Dictionary / Index S seismogram: Meaning and Definition of Find definitions for: seis•mo•gram Pronunciation: (sīz'mu-gram", sīs'-), [key] — n. a record made by a seismograph. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seismogram (Thesaurus) seismo- seismograph Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language