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- the planet third in order from the sun, having an equatorial diameter of 7926 mi. (12,755 km) and a polar diameter of 7900 mi. (12,714 km), a mean distance from the sun of 92.9 million mi. (149.6 million km), and a period of revolution of 365.26 days, and having one satellite.
- this planet as the habitation of humans
- the surface of this planet
- the solid matter of this planet; dry land; ground.
- soil and dirt, as distinguished from rock and sand; the softer part of the land.
- Chemistry . any of several metallic oxides that are difficult to reduce, as alumina, zirconia, and yttria. Compare alkaline earth, rare earth.
- Also called earth color. Fine Arts . any of various pigments consisting chiefly of iron oxides and tending toward brown in hue.
- Archaic . a land or country.
"Earth as a goddess," from Gk. Gaia, personification of gaia "earth," a collateral form of ge (Dorian ga ) "earth," of unknown origin. The Roman equivalent goddess of the earth was Tellus (see tellurian), sometimes used in Eng. poetically or rhetorically for "Earth personified" or "the Earth as a planet."
Originally posted by ghostsoldier
Terra is still just another way of saying ground.
Terra is latin for earth - earth as in ground.
So I choose not to use it to describe our planet.