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planetarium
5 dictionary results for: Planetarium
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
plan·e·tar·i·um 
[plan-i-tair-ee-uhm] Pronunciation Key
[plan-i-tair-ee-uhm] Pronunciation Key –noun, plural -tar·i·ums, -tar·i·a
[-tair-ee-uh] Pronunciation Key.
[-tair-ee-uh] Pronunciation Key. | 1. | an apparatus or model representing the planetary system. |
| 2. | a device that produces a representation of the heavens by the use of a number of moving projectors. |
| 3. | the building or room in which such a device is housed. |
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
American Heritage Dictionary - Cite This Source - Share This
| plan·e·tar·i·um
(plān'ĭ-târ'ē-əm) Pronunciation Key
n. pl. plan·e·tar·i·ums or plan·e·tar·i·a (-ē-ə)
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Online Etymology Dictionary - Cite This Source - Share This
planetarium
planetarium
1734, "orrery," Mod.L., from L.L. planeta (see planet) + L. -arium "a place for." Mod. sense of "device for projecting the night sky onto the interior of a dome" is attested from 1929.
Online Etymology Dictionary, © 2001 Douglas Harper
WordNet - Cite This Source - Share This
| planetarium | |
noun | |
| 1. | a building housing an instrument for projecting the positions of the planets onto a domed ceiling |
| 2. | an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome |
| 3. | an apparatus or model for representing the solar systems |
WordNet® 3.0, © 2006 by Princeton University.
Webster's Revised Unabridged Dictionary - Cite This Source - Share This
Planetarium
Plan`e*ta"ri*um\, n. [NL.: cf. F. plan['e]taire. See Planetary.] An orrery. See Orrery.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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