Etymology
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Pangaea

"supercontinent of the late Paleozoic era," 1924, from Greek pan- "all" (see pan-) + gaia "earth" (see Gaia). First attested in German, 1920, in Alfred Wegener's "Die Entstehung der Kontinente und Ozeane" (but according to OED the word is not found in 1914 first edition).

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Definitions of Pangaea

Pangaea (n.)
(plate tectonics) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland;
Synonyms: Pangea
From wordnet.princeton.edu