co·​ro·​na | \ kə-ˈrō-nə How to pronounce corona (audio) \
plural coronas

Definition of corona

 (Entry 1 of 2)

1 : the projecting part of a classic cornice
2 : something suggesting a crown: such as
a plural coronae\ kə-​ˈrō-​(ˌ)nē How to pronounce coronae (audio) \ also coronas
(1) : a usually colored circle often seen around and close to a luminous body (such as the sun or moon) caused by diffraction produced by suspended droplets or occasionally particles of dust
(2) : the tenuous outermost part of the atmosphere of a star (such as the sun)
(3) : a circle of light made by the apparent convergence of the streamers of the aurora borealis
b : the upper portion of a bodily part (such as a tooth or the skull)
c : an appendage or series of united appendages on the inner side of the corolla in some flowers (such as the daffodil, jonquil, or milkweed)
d : a faint glow adjacent to the surface of an electrical conductor at high voltage
e informal : coronavirus In the fight against the consequences of the corona epidemic, the Italian government is resorting to radical measures.— Anne Kunz et al.
3 [from La Corona, a trademark] : a long cigar having the sides straight to the end to be lit and being roundly blunt at the other end


geographical name
Co·​ro·​na | \ kə-ˈrō-nə How to pronounce Corona (audio) \

Definition of Corona (Entry 2 of 2)

city in southern California east of Los Angeles population 152,374

Illustration of corona

Illustration of corona


a corona 2c

In the meaning defined above

Examples of corona in a Sentence

Recent Examples on the Web: Noun Solar flares arc over the sun’s corona, the burning hot outermost layer of gas in its atmosphere. Nora Mcgreevy, Smithsonian Magazine, "Watch This Mesmerizing Time-Lapse of the Sun’s Last Decade," 2 July 2020 Alireza Zali, head of the capital’s corona task force, called for the shutdown to be extended for longer than a week. Aresu Eqbal, WSJ, "Iran Sets Coronavirus Record as Capital Returns to Lockdown," 5 Oct. 2020 Bolsonaro’s embrace of state spending comes as his approval ratings have been steadily rising ever since the government ushered in what came to be known as corona-vouchers. Andrew Rosati,, "Bolsonaro’s Newfound Appetite for Spending Has Markets on Edge," 2 Oct. 2020 Although the solar surface is a toasty 5,500 degrees Celsius (9,940 degrees Fahrenheit), the layer above it, the corona, blazes even hotter at a more than a million degrees. Nola Taylor Redd, Smithsonian Magazine, "How Three New Tools Will Revolutionize Our Understanding of the Sun," 28 Aug. 2020 The close range images of the sun's corona—which can spike to temperatures of 1 million degrees—were taken by the spacecraft's Extreme Ultraviolet Imager. Jennifer Leman, Popular Mechanics, "This Is the Closest Image of the Sun Ever Taken. Ever.," 16 July 2020 And yet, a pound now buys a little over $1.34, against about $1.31 at the beginning of the year (sterling fell as low as $1.15 at the peak of corona-panic in mid-March, and this time a year ago a pound was worth only $1.21). Andrew Stuttaford, National Review, "The Capital Note: Dollars & Lumber," 1 Sep. 2020 Turning the power on mid-flight produced a glow corona discharge which in turn emitted positive ions. Jennifer Ouellette, Ars Technica, "How “St. Elmo’s fire” could help protect aircraft from lightning strikes," 20 Aug. 2020 Even with all that, only two teams have suffered serious corona-damage. Paul Daugherty, The Enquirer, "Doc's Morning Line: MLB is doing a great job handling the coronavirus situation. Really.," 3 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'corona.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of corona


1563, in the meaning defined at sense 1

History and Etymology for corona


borrowed from Latin corōna "garland worn on the head as a mark of honor or emblem of majesty, halo around a celestial body, top part of an entablature" — more at crown entry 1

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Time Traveler for corona

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The first known use of corona was in 1563

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Last Updated

20 Oct 2020

Cite this Entry

“Corona.” Dictionary, Merriam-Webster, Accessed 30 Oct. 2020.

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More Definitions for corona


How to pronounce Corona (audio)

English Language Learners Definition of corona

technical : a bright circle seen around the sun or the moon


co·​ro·​na | \ kə-ˈrō-nə How to pronounce corona (audio) \

Medical Definition of corona

1 : the upper portion of a bodily part (as a tooth or the skull)
2 informal : coronavirus

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