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ter·ra | \ ˈter-ə 
\
\ plural terrae\ ˈter-(ˌ)ē , -ˌī \
, -ˌī \Definition of terra
: any of the relatively light-colored highland areas on the surface of the moon or a planet
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Merriam-Webster unabridgedWords at Play
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Time Traveler for terra
The first known use of terra was in 1946
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