planetarium
noun
plan·e·tar·i·um
ˌpla-nə-ˈter-ē-əm 
plural planetariums or planetaria
ˌpla-nə-ˈter-ē-ə
1
: a model or representation of the solar system
2
a
: an optical device for projecting various celestial images and effects
b
: a building or room housing such a projector
Examples of planetarium in a Sentence
Recent Examples on the Web
Though South Florida only saw a partial solar eclipse, the museum’s visitors pulled up to catch a glimpse and learn through programs and the planetarium about the science behind the moon blocking Earth’s view of the sun.
—
David Santiago, Miami Herald, 9 Apr. 2024
With construction scheduled to begin by the end of the month, the 23,000-square-foot project will include several different features, including an observatory, planetarium, theater, exhibits, and an immersion zone.
—Shelby Slade, The Arizona Republic, 9 Apr. 2024
For those staying in town, Milwaukee-area museums, parks, and planetariums are hosting viewing events, all with sun-protective glasses available for free or at a cheap price.
—Jordyn Noennig, Journal Sentinel, 8 Apr. 2024
Alchemist, in fact, has a large planetarium dome that lets its guests dine surrounded by projections of underwater sea life, inside a human body or, appropriately, looking down on the curvature of the earth.
—Michael Verdon, Robb Report, 14 Mar. 2024
General admission tickets include a planetarium program.
—Journal Sentinel, 16 Feb. 2024
Last year, the group expanded efforts to protect the labor rights of Los Angeles planetarium lecturers and strippers at LA clubs.
—Anthony Robledo, USA TODAY, 14 Feb. 2024
Rochester, and many of its surrounding communities in western New York, began planning for the big day seven years ago and will roll out a series of events that include performances, exhibits, family activities, speakers, and a three-day festival at Rochester’s science museum and planetarium.
—Wendy O'Dea, Travel + Leisure, 11 Feb. 2024
This team features more stars than a planetarium — Nathan MacKinnon, Cale Makar, Mikko Rantanen — but a compelling argument exists that Nichushkin remains the most important.
—Troy Renck, The Denver Post, 13 Mar. 2024
David Santiago, Miami Herald, 9 Apr. 2024
With construction scheduled to begin by the end of the month, the 23,000-square-foot project will include several different features, including an observatory, planetarium, theater, exhibits, and an immersion zone.
—Shelby Slade, The Arizona Republic, 9 Apr. 2024
For those staying in town, Milwaukee-area museums, parks, and planetariums are hosting viewing events, all with sun-protective glasses available for free or at a cheap price.
—Jordyn Noennig, Journal Sentinel, 8 Apr. 2024
Alchemist, in fact, has a large planetarium dome that lets its guests dine surrounded by projections of underwater sea life, inside a human body or, appropriately, looking down on the curvature of the earth.
—Michael Verdon, Robb Report, 14 Mar. 2024
General admission tickets include a planetarium program.
—Journal Sentinel, 16 Feb. 2024
Last year, the group expanded efforts to protect the labor rights of Los Angeles planetarium lecturers and strippers at LA clubs.
—Anthony Robledo, USA TODAY, 14 Feb. 2024
Rochester, and many of its surrounding communities in western New York, began planning for the big day seven years ago and will roll out a series of events that include performances, exhibits, family activities, speakers, and a three-day festival at Rochester’s science museum and planetarium.
—Wendy O'Dea, Travel + Leisure, 11 Feb. 2024
This team features more stars than a planetarium — Nathan MacKinnon, Cale Makar, Mikko Rantanen — but a compelling argument exists that Nichushkin remains the most important.
—Troy Renck, The Denver Post, 13 Mar. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'planetarium.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near planetarium
Cite this Entry
“Planetarium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/planetarium. Accessed 24 Apr. 2024.
Copy CitationKids Definition
planetarium
noun
plan·e·tar·i·um
ˌplan-ə-ˈter-ē-əm
plural planetariums or planetaria
-ē-ə
1
: a device that projects images of heavenly bodies on a ceiling shaped like a dome
2
: a building or room housing a planetarium
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