protocontinent
[proh-toh-kon-tn-uh nt]
- an actual or hypothetical landmass that might later be enlarged into a major continent or broken up into smaller ones.
Show More
Origin of protocontinent
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
protocontinent
[prō′tō-kŏn′tə-nənt]
- 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.
Show More
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.