seismometer

noun

seis·​mom·​e·​ter sīz-ˈmä-mə-tər 

sīs-

: a seismograph measuring the actual movements of the ground (as on the earth or the moon)

seismometric

ˌsīz-mə-ˈme-trik 

ˌsīs-

adjective

Examples of seismometer in a Sentence

Recent Examples on the Web

InSight placed the first seismometer on Mars’ surface in December 2018, which recorded 1,319 Marsquakes through 2022. —Eric Lagatta, USA Today, 4 Sep. 2025

Researchers from the Dublin Institute for Advanced Studies (DIAS) and Trinity College Dublin installed seismometers around the Aviva Stadium to measure the seismic activity generated by the fans’ movement to song beats. —Mrigakshi Dixit, Interesting Engineering, 3 Sep. 2025

What To Know The InSight mission, which deployed a highly sensitive seismometer on Mars in 2018 and operated until 2022, recorded more than 1,300 marsquakes. —Theo Burman, MSNBC Newsweek, 29 Aug. 2025

For a month, these state-of-the-art seismometers recorded natural ground vibrations over a wide range of frequencies. —David Bressan, Forbes.com, 27 Aug. 2025

Word History

First Known Use

1841, in the meaning defined above

Rhymes for seismometer

• barometer
• bolometer
• chronometer
• geometer
• hydrometer
• hygrometer
• kilometer
• micrometer
• odometer
• photometer
• psychrometer
• pycnometer

Kids Definition

seismometer

noun

seis·​mom·​e·​ter sīz-ˈmäm-ət-ər 

sīs-

: a seismograph that measures the actual movements of the ground