Definition of supercontinent noun from the Oxford Advanced Learner's Dictionary

 

supercontinent

 noun
noun
BrE BrE//ˈsuːpəkɒntɪnənt//
 
, BrE//ˈsjuːpəkɒntɪnənt//
 
; NAmE NAmE//ˈsuːpərkɑːntɪnənt//
 
(geology)
 
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any of the very large areas of land, for example Gondwana or Laurasia, that existed millions of years ago
See the Oxford Advanced American Dictionary entry: supercontinent