an asteroid in an orbit that takes it close to the earth Also called near-earth asteroid
noun, Aeronautics. 1. a compass actuated by induction from the earth’s magnetic field. noun 1. a compass that depends on the current induced in a coil revolving in the earth’s magnetic field Also called inductor compass
[ur-thee] /ˈɜr θi/ adjective, earthier, earthiest. 1. of the nature of or consisting of or soil. 2. characteristic of : an earthy smell. 3. realistic; practical. 4. coarse or unrefined: an earthy sense of humor. 5. direct; robust; unaffected: an earthy, generous woman. 6. (of a mineral) having a dull luster and rough to the […]
[urth] /ɜrθ/ noun 1. (often initial capital letter) the planet third in order from the sun, having an equatorial diameter of 7926 miles (12,755 km) and a polar diameter of 7900 miles (12,714 km), a mean distance from the sun of 92.9 million miles (149.6 million km), and a period of revolution of 365.26 days, […]
[urth-lahyt] /ˈɜrθˌlaɪt/ noun, Astronomy. 1. . /ˈɜːθˌlaɪt/ noun 1. another name for earthshine n. 1833, from earth + light (n.). Apparently coined by British astronomer John Herschel.