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

Keep scrolling for more

Synonyms for coronal

Synonyms: Noun

chaplet, coronet, crown, diadem

Visit the Thesaurus for More 

Examples of coronal in a Sentence


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

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 This region, also known as a coronal hole, allows charged particles to escape and flow toward Earth in an increased solar wind. Samantha Mathewson,, "'Hole' in the Sun Spawns Powerful Solar Wind; Could Amp Up Auroras," 10 Apr. 2018 Earth is in the line of fire of a series of coronal holes. Kyle Stock,, "Too Much Sun Could Wreak Havoc on Driverless Cars," 16 Mar. 2018 That’s because the chance of both a solar eclipse and a coronal ejection occurring in tandem are slight. Ben Panko, Smithsonian, "This New Mexico Petroglyph Might Reveal an Ancient Solar Eclipse," 17 Aug. 2017 The strongest fields cause coronal discharges — brief bursts of visible light. Mike Mckinnon, Washington Post, "What caused the mysterious lights in the night sky after Mexico’s earthquake?," 15 Sep. 2017 To McKay and hundreds of volunteer citizen scientists across the country, spotting a coronal mass ejection Monday would be like hitting the jackpot. Scott Dance,, "Scientists flock to eclipse path to conduct research, or just bask in magnificence," 18 Aug. 2017

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.

See More

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

Keep scrolling for more

Learn More about coronal

Statistics for coronal

Look-up Popularity

Time Traveler for coronal

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

See more words from the same century

Keep scrolling for more

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

More from Merriam-Webster on coronal

Rhyming Dictionary: Words that rhyme with coronal

Thesaurus: All synonyms and antonyms for coronal

Comments on coronal

What made you want to look up coronal? Please tell us where you read or heard it (including the quote, if possible).


providing supplementary assistance

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!