Definition of SARS-CoV-2
: the coronavirus (Severe acute respiratory syndrome coronavirus 2 of the genus Betacoronavirus) that is the causative agent of COVID-19
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Test Your Vocabulary
The Exceptions Quiz III
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- Which of these words does not mean "nonsense"?

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Merriam-Webster unabridged
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Time Traveler for SARS-CoV-2
The first known use of SARS-CoV-2 was in 2020
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