As nouns the difference between terrs and terra
is that terrs is while terra is earth.
terrs
English
Noun
(head)
terra
English
Noun
(terrae)
A rough upland or mountainous region of the moon with a relatively high albedo.
Related terms
* terrace
* terracotta
* terrain
* terrene
* terrier
* territorial
* territory
* terrestrial
* Terra
* Terran
* terra firma