adjective: relating to or inhabiting Earth.
noun: an inhabitant of Earth.
From Latin tellus (earth). Tellus, also known as Terra, was the goddess of the earth in Roman mythology. Earliest documented use: 1846
Usage (from Wordsmith)
“Life without him was less imaginable than a tellurian’s camping-tent on a mountain in the moon.”
Vladimir Nabokov; The Real Life of Sebastian Knight; New Directions Publishers; 1941.
“We Tellurians, or Earth-dwellers, have always wondered about the existence of life on other worlds.”
Howard Williams; Book Briefs; The Press (Christchurch, New Zealand); Sep 29, 2007.