: 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
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
Illustration of corona
a corona 2c
Examples of corona in a Sentence
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The eclipse images arrived the same week the European Space Agency's Solar Orbiter spacecraft sent back one of the most detailed images of the sun's corona.—Jamie Carter, Forbes.com, 28 Apr. 2025 Where and when the corona was captured The location was no fluke.—Jamie Carter, Space.com, 22 Apr. 2025 The polarization system, extremely sensitive cameras and an extra-wide angle view will provide greater detail of the sun, its corona, and the winds that flow out from it.—Paul Smaglik, Discover Magazine, 7 Feb. 2025 The sun’s outer atmosphere, called the corona, appears in yellow.—Amanda Kooser, Forbes, 3 Jan. 2025 See All Example Sentences for corona
Word History
Etymology
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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