corona
noun
co·ro·na
| \ kə-ˈrō-nə
\
\
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
\
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
\
\
Definition of Corona (Entry 2 of 2)
city in southern California east of Los Angeles population 152,374
Examples of corona in a Sentence
Recent Examples on the Web: Noun
The 7,241-foot altitude of Cerro Tololo will provide uniquely clear views of the corona during this eclipse, Pasachoff adds. — Eric Adams, WIRED, "The Blazing Science of This Year's Total Solar Eclipse," 1 July 2019 Reconnection is central to many turbulent processes, such as feedback between large and small eddies in Earth’s atmosphere, the heating of the solar corona and the generation of Earth’s magnetic field. — Quanta Magazine, "Could Knots Unravel Mysteries of Fluid Flow?," 9 Dec. 2013 Every part of the museum’s design had cultural meaning, even the 17.5-degree angle of the edges of the three levels of the corona — exactly the same angle at the top of the Washington Monument, only inverted. — Matt Schudel, Washington Post, "Phil Freelon, architect who helped design Smithsonian’s African American Museum, dies at 66," 9 July 2019 The sun’s corona, for example, is hotter than the solar surface despite being farther from the center of the sun, a mystery that scientists are still trying to explain. — Michael Waters, Smithsonian, "Photos Capture the Great South American Eclipse," 2 July 2019 During an eclipse, only the sun’s corona is visible to the naked eye. — Leada Gore | [email protected], al.com, "Total solar eclipse 2019: How to see today’s South American eclipse; times; NASA livestream," 2 July 2019 Special for Science This weekend's celestial alignment is a special chance for professional astronomers to study the corona, the outer atmosphere of the sun, which is usually hidden by the glare of the sun. — Andrew Fazekas, National Geographic, "How to watch South America’s total eclipse from anywhere," 2 July 2019 For one thing, the corona is about 300 times hotter than the surface of the Sun, which doesn’t make much sense to researchers. — Loren Grush, The Verge, "Watch a spacecraft get blasted to the Sun tomorrow morning," 10 Aug. 2018 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. 2018These 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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More Definitions for corona
corona
noun
English Language Learners Definition of corona
technical
: a bright circle seen around the sun or the moon
See the full definition for corona in the English Language Learners Dictionary
corona
noun
co·ro·na
| \ kə-ˈrō-nə
\
\
Medical Definition of corona
: the upper portion of a bodily part (as a tooth or the skull)
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