seismograph
- noun
- /ˈsaɪzməˌgræf/
- Specialized
- According to the readings on the seismograph, a significant tremor occurred earlier today.
- seismographs registered
- seismographs record
- seismograph needle
They travel into this, the the planets, they bounce back at the iron core and seismographs detect it.
- They travel into this, the the planets, they bounce back at the iron core and seismographs detect it.
Examples
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At seven-thirty in the morning, while Gunvald had been shaving, with the bad dreams still fresh in his mind, the seismograph had recorded a third tremor: Richter 5.2.
Fiction book (2000) -
Since 1974, a network of 30 seismographs has been set up over the New Madrid fault between St. Louis and southern Illinois.
Academic text (2006) -
Have all seismograph records and wave intensity analysis ready when I get there.
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It's a standard torsion seismograph.
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Well, I'm supposed to monitor these seismographs.
Fiction book (1990) -
All right, here is a seismograph, in other words, a device for detecting tremors of the earth.
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Deep-sea seismographs have recorded explosions on the ocean floor.
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I also saw seismographs that showed what movements were going on under the Earth's crust.
Academic text (1990) -
'Seismographs around the world detected the blast, 'and the explosion was seen as far away as Lithuania 'on the Baltic Sea.
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When an earthquake strikes, the seismograph detects the ground movements and records their intensity.
Synonyms
A device that measures shaking in the ground, for example during an earthquake
A device that detects and records ground shaking to study earthquakes or underground movement
How Sensitive
Surface Forms
Morphology
seismograph = seism + graph
The word is built from classical combining forms, but most B1 learners would not know the bound root meaning 'earthquake' or the suffix meaning 'recording instrument', so the meaning is not reliably inferable.
Etymology
Seismograph comes from Greek parts seismo- meaning 'shake' or 'earthquake' and -graph meaning 'to write', as in photograph. So a seismograph is a machine that 'writes down' the earth's shakes, which is why it records ground movement during earthquakes.