Similar words: homograph, demography, demographic, seismology, seismoscope, geography, holograph, biography. Meaning: ['saɪzməgræf /-grɑːf] 
n. a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake).
n. a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake). 
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31. Today, quartz crystal clocks are generally used on the seismograph stations.
More similar words: homograph, demography, demographic, seismology, seismoscope, geography, holograph, biography, autograph, phonograph, pictograph, photograph, topography, mimeograph, photographer, pornographer, lithography, stenographer, pornography, orthography, photography, choreograph, cartography, iconography, biographical, choreography, bibliography, biogeography, geographical, lexicographer.