Definition of fault line in English:

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fault line


1A line on a rock surface or the ground that traces a geological fault.
Example sentences
  • The world's only accurate detection system today is spread along the three major underwater fault lines in the Northeastern Pacific Ocean.
  • The India plate dove under the Burma plate some 50 feet, causing a fault line 750 miles long.
  • Each year, thousands of tremors of various degrees of intensity are recorded on that fault line.
1.1A divisive issue or difference of opinion that is likely to have serious consequences: religion is now the great fault line of American politics
More example sentences
  • Nevertheless, the provisional results reveal deep divisions across ethnic fault lines.
  • Our ongoing cultural encounter with the gray is, at the very least, emblematic of fault lines in the contemporary culture.
  • To consolidate democracy, he said, " we need a nation which has been able to overcome its historic fault-lines ".

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