The earth; earth.
The name of the planet, basically Earth.
Terra: a Spiritual name for the Earth.
earth ... ponderosa ("heavy earth"), barium oxide, BaO ... ponderosa aerata ("aerated heavy earth"), barium carbonate, BaCO3
the true spiritual name for Earth.
Earth Observatory System's space-based instrument that studies the interactions among the Earth's atmosphere, lands, oceans, life, and radiant energy (heat and light)
Acronym for Terrestrial Ecosystems Regional Research and Analysis Laboratory, whose mission is to incorporate realistic consideration of land and natural resource management understanding into terrestrial ecosystem components of earth system modeling. See the TERRA Web site.