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craton

cra·ton [ kráy tòn ] (plural cra·tons)


noun 
Definition:
 
stable part of earth's crust: the extensive interior of a large block of the Earth's crust that has been relatively stable for many millions of years

[Mid-20th century. Either alteration of kratogen< Greek kratos "strength"; or < German Kraton, alteration of Greek kratos]

cra·ton·ic [ kray tónnik ] adjective
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