'Seismogram' definitions:

Definition of 'seismogram'

(from WordNet)
noun
The graphical record of an earth tremor made by using a seismograph

Definition of 'Seismogram'

From: GCIDE
  • Seismogram \Seis"mo*gram\, n. [Gr. ? earthquake + -gram.] (Physics) The trace or record of an earth tremor, made by means of a seismograph. [Webster 1913 Suppl.]