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[proh-toh-kon-tn-uh nt] /ˌproʊ toʊˈkɒn tn ənt/
noun, Geology.
an actual or hypothetical landmass that might later be enlarged into a major continent or broken up into smaller ones.
Origin of protocontinent
First recorded in 1955-60; proto- + continent Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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protocontinent in Science
A landmass that existed at some point in the past. Protocontinents that are thought to have comprised some or all of the present-day continents in a single landmass are also known as supercontinents.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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