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coronavirus

American  
[kuh-roh-nuh-vahy-ruhs] / kəˈroʊ nəˌvaɪ rəs /

noun

plural

coronaviruses
  1. any of various RNA-containing spherical viruses of the family Coronaviridae, including several that cause acute respiratory illnesses.


coronavirus British  
/ kəˈrəʊnəˌvaɪrəs /

noun

  1. a type of airborne virus accounting for 10-30% of all colds

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of coronavirus

First recorded in 1965–70; so called from the coronalike array of spikes projecting from the capsid

Compare meaning

How does coronavirus compare to similar and commonly confused words? Explore the most common comparisons:

Explanation

A coronavirus is a specific type of microbe that can cause an infectious disease. One particular coronavirus, first identified in 2019, caused a worldwide pandemic. If you look at a coronavirus under a microscope, you'll see its round, spiky, crownlike shape. That's where this virus gets its name; corona means "crown" in Latin. People talked about coronaviruses a lot in 2020 because of Covid-19 (an acronym for coronavirus disease of 2019). But these viruses have been around for generations, and they're usually not so deadly. In fact, coronaviruses are responsible for the common cold, as well as illnesses affecting birds and non-human mammals.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The future budget also includes setting aside around 168 billion euros to repay the EU loan taken out during the coronavirus pandemic.

From Barron's • Apr. 9, 2026

After the coronavirus pandemic canceled Coachella in 2020 and 2021, fans were excited to be back at the polo grounds in 2022.

From Los Angeles Times • Apr. 6, 2026

In 2020, it ordered the culling of all roughly 17 million farm-raised mink in Denmark to stop the spread of a coronavirus mutation, a directive it later admitted had no legal grounds.

From The Wall Street Journal • Mar. 19, 2026

Being diagnosed in 2020 at the start of the coronavirus pandemic, Trish said it was a lonely cancer journey and it's only recently that she can talk about the trauma.

From BBC • Mar. 18, 2026

Part of the inspiration for the film came out of the lockdown during the coronavirus pandemic.

From MarketWatch • Mar. 13, 2026