(Astronomy) A body which orbits the Sun directly and is massive enough to be in hydrostatic equilibrium (effectively meaning a spheroid) and to dominate its orbit; specifically, the eight major bodies of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. (Pluto was considered a planet until 2006 and has now been reclassified as a dwarf planet.) [from 17th c.]
The third planet from the Sun and the densest planet in the solar system. Earth is a terrestrial or inner planet consisting of a thin outer crust, an intermediate mantle, and a dense inner core. It has an atmosphere composed primarily of nitrogen and oxygen and is the only planet on which water in liquid form exists, covering more than 70 percent of its surface. It is also the only planet on which life is known to have evolved, occupying the relatively thin region of water, land, and air known as the biosphere. Earth has a single, relatively large natural satellite, the Moon.
The modern species of humans. Archaic forms of Homo sapiens probably evolved around 300,000 years ago or earlier in Africa, and anatomically modern fossils are known from about 100,000 years ago. All humans now living belong to the subspecies Homo sapiens sapiens . The closest living relative of Homo sapiens is the chimpanzee.
refers to the whole system of planets, stars, space, etc. and to everything that exists in it
is applied to the globe or planet we live on, but in religious use is opposed to heaven or hell
Find another word for earth. In this page you can discover 90 synonyms, antonyms, idiomatic expressions, and related words for earth, like: mother-earth, gaea, terra (Latin), planet, globe, orb, cosmos, world, universe, terrene and sphere.