corona

noun
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
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

Corona

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

Noun

a corona 2c

In the meaning defined above

Examples of corona in a Sentence

Recent Examples on the Web: Noun

The second prevailing theory of coronal heating involves waves of energy, known as Alfvén waves, traveling back and forth between the sun's surface and corona. Jay Bennett, Popular Mechanics, "The New Science of the Sun Will Be Astounding—And Possibly Terrifying," 9 Aug. 2018 Parker will be the first spacecraft to fly through the Sun’s corona, the outermost part of the star’s atmosphere. James Rogers, Fox News, "NASA's Parker Solar Probe gets closer to 'touching the Sun'," 6 Sep. 2018 From the corona, these particles collectively stream out into space as solar wind. Robin Seemangal, Popular Mechanics, "A Workhorse Rocket Maker Tries to Touch the Sun—And Stay Relevant," 16 Aug. 2018 After all, its traveling into the outer layer of the sun, known as the corona, which is going to be closer to a star than any manmade object in history. David Grossman, Popular Mechanics, "Why the Sun-Studying Parker Space Probe Won't Melt," 20 July 2018 If all goes according to plan, the Parker Solar Probe will fly through the sun's outer atmosphere, or corona, 24 times over the next seven years. Mike Wall, Space.com, "A Fireball and a Wall of Sound: What NASA's Epic Solar Probe Launch Felt Like," 14 Aug. 2018 On top of the rocket is NASA’s Parker Solar Probe, embarking on the first ever mission into the Sun’s atmosphere, known as the corona. Loren Grush, The Verge, "Watch a spacecraft get blasted to the Sun tomorrow morning," 10 Aug. 2018 This instrument will measure magnetic and electric fields in the sun's atmosphere to help scientists better understand why the corona is so much hotter than the photosphere. Elizabeth Howell, Space.com, "Here Comes the Sun! Parker Solar Probe Instruments See 'First Light'," 25 Sep. 2018 One of the greatest mysteries of the sun is the extraordinary temperature of its corona. Jay Bennett, Popular Mechanics, "The New Science of the Sun Will Be Astounding—And Possibly Terrifying," 9 Aug. 2018

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

Noun

1548, in the meaning defined at sense 1

History and Etymology for corona

Noun

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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Statistics for corona

Last Updated

5 Jun 2019

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Time Traveler for corona

The first known use of corona was in 1548

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More Definitions for corona

corona

noun

English Language Learners Definition of corona

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

corona

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

Medical Definition of corona

: the upper portion of a bodily part (as a tooth or the skull)

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More from Merriam-Webster on corona

Rhyming Dictionary: Words that rhyme with corona

Spanish Central: Translation of corona

Nglish: Translation of corona for Spanish Speakers

Britannica.com: Encyclopedia article about corona

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