supercontinent

  1. Noun.  A very large continent that split into smaller ones in the Earth’s geologic past.
  2. Noun.  Sometimes used to refer, due to their being composed of multiple continents, to one of the following modern landmasses: Afro-Eurasia and the Americas. (compare subcontinent).

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This entry was last updated on RefTopia from its source on 3/20/2012.