cor·​o·​nal | \ ˈkȯr-ə-nᵊl How to pronounce coronal (audio) , ˈkär- \
variants: or less commonly coronel

Definition of coronal

 (Entry 1 of 2)

: a circlet for the head usually implying rank or dignity


co·​ro·​nal | \ ˈkȯr-ə-nᵊl How to pronounce coronal (audio) , ˈkär-; kə-ˈrō- How to pronounce coronal (audio) \

Definition of coronal (Entry 2 of 2)

1a : lying in the direction of the coronal suture
b : of or relating to the frontal plane that passes through the long axis of the body
2 : of or relating to a corona or crown

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Synonyms for coronal

Synonyms: Noun

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Examples of coronal in a Sentence

Noun a Renaissance portrait of a nobel woman of Florence wearing a bejeweled coronal
Recent Examples on the Web: Noun The dramatic coronal headpiece was meant to evoke the Virgin Mary. New York Times, "In the Name of Cardi, Let Us Pray," 8 May 2018 Recent Examples on the Web: Adjective According to a press release from UC Berkeley, during each pass of the sun, the probe was able to park 15 million miles above a coronal hole for up to a week at a time about. Jason Daley, Smithsonian, "NASA’s Sun-Orbiting Probe Reveals New Secrets of Our Host Star," 6 Dec. 2019 According to Richter, this was just a routine coronal scan. Ashley Hoffman, Time, "'Pug X-Ray Photo' Melts Down Internet for Being Simultaneously Cute and Creepy," 19 Dec. 2019 And the data from Fields suggest that the slow wind is coming from coronal holes as well, but from smaller ones near the solar equator. Mike Wall, Scientific American, "NASA’s Sun-Kissing Parker Solar Probe Lifts the Veil on Our Closest Star," 4 Dec. 2019 Today, four studies in the journal Nature report the first data from NASA’s Parker Solar Probe, an unprecedented mission that has been able to fly ever closer to the sun, three times so far, and taste its coronal breath. National Geographic, "The sun keeps getting stranger, dive-bombing solar probe shows," 4 Dec. 2019 Doros said that those functions can include vibration, temperature, humidity, or partial coronal discharge. Wayne Rash, Ars Technica, "Manufacturing memory means scribing silicon in a sea of sensors," 21 June 2019 But special circumstances — such as coronal holes and giant explosions of solar plasma called coronal mass ejections — can extend the intensity and the reach of these dazzling light displays. Mike Wall,, "Hole in Sun's Atmosphere Amps Up Northern Lights," 11 Sep. 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. 2018 The coronal heating problem is just one of three interrelated mysteries the Parker Probe will collect data on in hopes of solving. Brian Resnick, Vox, "NASA is shooting a spaceship at the sun. It might help us solve a huge mystery.," 8 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coronal.' 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 coronal


14th century, in the meaning defined above


14th century, in the meaning defined at sense 1a

History and Etymology for coronal


Middle English coronal, borrowed from Anglo-French coronel, corinal, probably borrowed from Medieval Latin corōnāle, noun derivative from neuter of Latin corōnālis "of a wreath or garland" — more at coronal entry 2


Middle English coronale, borrowed from Medieval Latin corōnālis "of the forehead or crown of the head," going back to Latin, "of a wreath or garland," from corōna "garland worn on the head as a mark of honor or emblem of majesty, halo around a celestial body" + -ālis -al entry 1 — more at crown entry 1

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Time Traveler for coronal

Time Traveler

The first known use of coronal was in the 14th century

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Cite this Entry

“Coronal.” Dictionary, Merriam-Webster, Accessed 20 Feb. 2020.

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More Definitions for coronal


co·​ro·​nal | \ ˈkȯr-ən-ᵊl How to pronounce coronal (audio) , ˈkär-; kə-ˈrōn- How to pronounce coronal (audio) \

Medical Definition of coronal

1 : of, relating to, or being a corona
2 : lying in the direction of the coronal suture
3 : of or relating to the frontal plane that passes through the long axis of the body

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