Definition of supercontinent
: a hypothetical former large continent from which other continents are held to have broken off and drifted away
Recent Examples of supercontinent from the Web
But the dark bands appeared during the breakup of Gondwana, a supercontinent that formed around 600 million years and split apart around 180 million years ago.
This interesting brew is named after the supercontinent Pangea* which began breaking apart 175 million years ago, eventually forming our modern continents.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'supercontinent'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of supercontinent
Learn More about supercontinent
Britannica.com: Encyclopedia article about supercontinent
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