Illustration of corona
- a corona 2c
plural coronas
1
: the projecting part of a classic cornice
2
: something suggesting a crown: such as
a
plural coronae
kə-ˈrō-(ˌ)nē 
also coronas
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.
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
Examples of corona in a Sentence
Recent Examples on the Web
Coronal ejections are large expulsions of plasma and magnetic field from the Sun’s corona, according to NOAA.
—Dinah Voyles Pulver, USA TODAY, 12 May 2024
On the same day this video was recorded, NASA’s Parker Solar Probe passed to within 4.5 million miles (7.26 million kilometers) of the solar surface, measuring particles and the magnetic field in the Sun’s corona and solar wind, according to ESA.
—George Dvorsky / Gizmodo, Quartz, 2 May 2024
CMEs are expulsions of plasma and magnetic field from the sun's corona, the outermost part of the sun's atmosphere, according to the SWPC.
—Mary Kekatos, ABC News, 10 May 2024
The video captures a complex and dynamic stellar environment, vividly showing the transition from the Sun’s lower atmosphere to its much hotter outer corona.
—George Dvorsky / Gizmodo, Quartz, 2 May 2024
Furthermore, recent research based on data from NASA’s Solar Dynamics Observatory (SDO) indicates that the Sun’s corona often produces small flashes before regions below are about to experience a solar flare.
—Jake Parks, Discover Magazine, 24 Apr. 2024
During totality, the sun's outer atmosphere known as the corona, which is normally lost in the sun's bright glare, makes a dazzling appearance.
—Eric Lagatta, USA TODAY, 10 Apr. 2024
The preparation led to a groundbreaking moment where students, teachers and parents were able to briefly remove their protective eyeglasses and observe the moon’s complete blockage of the sun, revealing its radiating halo known as the corona.
—Lina Ruiz, Fort Worth Star-Telegram, 9 Apr. 2024
The space agency says that when the moon covers the sun, the corona emits electromagnetic radiation.
—Aliza Chasan, CBS News, 8 Apr. 2024
Dinah Voyles Pulver, USA TODAY, 12 May 2024
On the same day this video was recorded, NASA’s Parker Solar Probe passed to within 4.5 million miles (7.26 million kilometers) of the solar surface, measuring particles and the magnetic field in the Sun’s corona and solar wind, according to ESA.
—George Dvorsky / Gizmodo, Quartz, 2 May 2024
CMEs are expulsions of plasma and magnetic field from the sun's corona, the outermost part of the sun's atmosphere, according to the SWPC.
—Mary Kekatos, ABC News, 10 May 2024
The video captures a complex and dynamic stellar environment, vividly showing the transition from the Sun’s lower atmosphere to its much hotter outer corona.
—George Dvorsky / Gizmodo, Quartz, 2 May 2024
Furthermore, recent research based on data from NASA’s Solar Dynamics Observatory (SDO) indicates that the Sun’s corona often produces small flashes before regions below are about to experience a solar flare.
—Jake Parks, Discover Magazine, 24 Apr. 2024
During totality, the sun's outer atmosphere known as the corona, which is normally lost in the sun's bright glare, makes a dazzling appearance.
—Eric Lagatta, USA TODAY, 10 Apr. 2024
The preparation led to a groundbreaking moment where students, teachers and parents were able to briefly remove their protective eyeglasses and observe the moon’s complete blockage of the sun, revealing its radiating halo known as the corona.
—Lina Ruiz, Fort Worth Star-Telegram, 9 Apr. 2024
The space agency says that when the moon covers the sun, the corona emits electromagnetic radiation.
—Aliza Chasan, CBS News, 8 Apr. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'corona.' 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 corona
Cite this Entry
“Corona.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/corona. Accessed 28 May. 2024.
Copy CitationKids Definition
corona
noun
co·ro·na
kə-ˈrō-nə
1
: a usually colored circle often seen around and close to a shining body (as the sun or moon)
2
: the outermost part of the atmosphere of a star (as the sun)
3
: a faint glow next to the surface of an electrical conductor at high voltage
coronal
adjective
ˈkȯr-ən-ᵊl
ˈkär-;
kə-ˈrōn-
Medical Definition
corona
noun
co·ro·na
kə-ˈrō-nə
1
: the upper portion of a bodily part (as a tooth or the skull)
2
informal
: coronavirus
Geographical Definition
Corona
geographical name
Co·ro·na
kə-ˈrō-nə
city in southern California east of Los Angeles population 152,374
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