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Definition of seismograph

seismograph

/ˈsaɪz.məˌɡræf/
seis · mo · graph
Adverb:seismographically
•
Plural:seismographs
•
Adjective:seismographic
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seismograph Lexical Profile

seismograph Game Scores & Validity

• noun

1

A scientific instrument used to detect, measure, and record the intensity, direction, and duration of earthquakes and other ground tremors.

Example

"The laboratory's seismograph recorded a small, localized tremor shortly after midnight."

Synonyms
View all synonyms for seismograph

Word Nuance & Usage

While often used interchangeably with 'seismometer,' a seismograph technically refers to the complete measuring and recording instrument (including the charting mechanism), whereas a seismometer is strictly the internal sensor that detects ground motion.

• Rhymes for seismograph

• Nearby Words

seesaw
segura
seine
seismograph
seitan
sekumpul
selaginella

Word Origin & Etymology

Coined in the mid-19th century from the Greek words 'seismos' (earthquake) and 'graphein' (to write).

Cite this Entry

Wordmom. (2026). Definition of Seismograph. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/seismograph
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