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adj

seismic

SYZ-mihk
adj
1
Relating to earthquakes or other movements of the ground.
"The region installed new seismic sensors after the last earthquake."
"Engineers designed the tower to withstand seismic activity."
2
Having an enormous or far-reaching impact, by comparison to an earthquake.
"The election result was described as a seismic shift in politics."

How to Use Seismic

Learner’s notes

In plain EnglishTo do with earthquakes, or so significant it feels like one.

Common pairings
seismic activity seismic shift seismic waves
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The region installed new _____ sensors after the last earthquake.

Etymology

Built from Ancient Greek seismos, "shaking, earthquake," plus the adjective ending -ic.

Definitions: FreeDict original editorial