Definition of tectonic
- a tectonic shift in voting patterns
There has been a recent tectonic shift in voting patterns.
a tectonic shift in societal trends occurred in the 1960s
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tectonic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
geology : of or relating to changes in the structure of the Earth's surface
: having a large and important effect
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