seismograph

noun

seis·​mo·​graph ˈsīz-mə-ˌgraf 

ˈsīs-

: an apparatus to measure and record vibrations within the earth and of the ground

seismographer

sīz-ˈmä-grə-fər 

sīs-

noun

seismographic

ˌsīz-mə-ˈgra-fik 

ˌsīs-

adjective

seismography

sīz-ˈmä-grə-fē 

sīs-

noun

Examples of seismograph in a Sentence

Recent Examples on the Web

None of Tuesday's eruptions could be observed visually because the volcano was shrouded in dense fog, but all four events were confirmed by seismographs that recorded volcanic tremors, the agency said. — ABC News, 7 Sep. 2026

Because of the quick succession of Wednesday’s quakes, Hubbard said confirming there were two earthquakes could be difficult with the preliminary data — and there are other possible explanations for what scientists see on seismographs currently. — Kasha Patel, CNN Money, 25 June 2026

By the 1980s, however, scientists had developed seismographs, satellites, and tamper-proof cameras. — Billy Perrigo, Time, 23 June 2026

For the former, there are plans to install seismographs to help understand the phenomenon. — Jorge Garay, Wired News, 9 Apr. 2026

Word History

Etymology

International Scientific Vocabulary

First Known Use

1858, in the meaning defined above

Rhymes for seismograph

• autograph
• biograph
• cenotaph
• chronograph
• epigraph
• epitaph
• hodograph
• holograph
• hydrograph
• lithograph
• micrograph
• monograph

Kids Definition

seismograph

noun

seis·​mo·​graph ˈsīz-mə-ˌgraf 

ˈsīs-

: a device to measure and record vibrations of the earth

seismographic

ˌsīz-mə-ˈgraf-ik 

ˌsīs-

adjective

seismography

sīz-ˈmäg-rə-fē 

sīs-

noun