- A rough highland or mountainous region of the moon with a relatively high albedo. Compare mare.
- A vast highland region on a planet.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Examples from the Web for terrae
Lex terrae, etc.; Rerum judicatarum censurae octo, in folio; praeter alias ejusdem naturae ineditas.Brief Lives (Vol. 2 of 2)
When he came to New College, he was Terrae filius; but he was so bitterly satyricall that he was expelled and putt to his shifts.Brief Lives (Vol. 1 of 2)
As a result the pages of Terrae Filius are from cover to cover a source of immense joy.
Terrae Filius immediately began to puzzle his brain as to the membership of the club and its intentions.
Abuses of such a nature are long dead, and a Terrae Filius to-day would rapidly die of starvation by reason of the lack of matter.