Dictionary

supercontinent

noun su·per·con·ti·nent \ˈsü-pər-ˌkän-tə-nənt, -ˌkänt-nənt\

Definition of SUPERCONTINENT

:  a hypothetical former large continent from which other continents are held to have broken off and drifted away
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First Known Use of SUPERCONTINENT

1960

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