| 单词 | planetarium |
| 释义 | planetarium (once / 37052 pages) n A planetarium is a theater where you can look at images of planets, stars, and other celestial bodies on the dome-shaped ceiling. Planetariums host school field trips by day, and can even host Pink Floyd laser light rock shows by night. Use the noun planetarium for the projector that shines light onto the surface of the building's dome, recreating solar systems and constellations — and also for the building itself, where such a show is put on. Because planetarium is a Modern Latin word (from the roots planeta, or "planet," and -arium, "a place for,"), its plural can be either planetariums or planetaria. WORD FAMILYplanetarium: planetaria, planetariums USAGE EXAMPLESDuring the week before the opening, Wong worked into the night transforming the Main Street Gallery into a jet-black planetarium of sorts. Washington Times(Nov 12, 2016) When I was 9, they took me to the Hayden Planetarium in Manhattan to see an audio-visual show about space. Wall Street Journal(Nov 08, 2016) Since then, planetarium visits and TV science programs on celestial marvels had only whetted our appetites. Washington Post(Nov 03, 2016) 1n an apparatus or model for representing the solar systems Hypo|Hyper orrery planetarium consisting of an apparatus that illustrates the relative positions and motions of bodies in the solar system by rotation and revolution of balls moved by wheelwork; sometimes incorporated in a clock model, simulation representation of something (sometimes on a smaller scale) 2n an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome Hyper optical device a device for producing or controlling light 3n a building housing an instrument for projecting the positions of the planets onto a domed ceiling Hyper building, edifice a structure that has a roof and walls and stands more or less permanently in one place |
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