planetarium
an apparatus or model representing the planetary system.
a device that produces a representation of the heavens by the use of a number of moving projectors.
the building or room in which such a device is housed.
Origin of planetarium
1Words Nearby planetarium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use planetarium in a sentence
Ingulfus mentions at the same time a nadir, as he calls it, or planetarium, executed in various metals.
It no doubt corresponded in a great measure to our modern planetarium, or orrery, invented by the earl of that name.
Cicero's Tusculan Disputations | Marcus Tullius CiceroHere also was born the ingenious Eisa Eisinga, who constructed the Franeker planetarium in the intervals of wool-combing.
A Wanderer in Holland | E. V. LucasThe dome was lighted to represent a clear night, and, incidentally, all nights are clear in a planetarium.
Astounding Stories, August, 1931 | VariousOrreryA planetarium; an instrument showing the relative motions, positions and masses of the sun and planets.
Time Telling through the Ages | Harry Chase Brearley
British Dictionary definitions for planetarium
/ (ˌplænɪˈtɛərɪəm) /
an instrument for simulating the apparent motions of the sun, moon, and planets against a background of stars by projecting images of these bodies onto the inside of a domed ceiling
a building in which such an instrument is housed
a model of the solar system, sometimes mechanized to show the relative motions of the planets
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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