1
: of, relating to, or caused by a virus
a viral infection
2
: quickly and widely spread or popularized especially by means of social media
a viral video
Examples of viral in a Sentence
Recent Examples on the Web
The approach could open safer treatment possibilities for bipolar disorder, Alzheimer’s disease, and viral brain infections.
—
Aamir Khollam, Interesting Engineering, 9 Oct. 2025
The viral beverage is supposed to support hormone regulation during periods of chronic stress, giving you more energy, improving your sleep, and squashing food cravings.
—Jani Hall, Health, 8 Oct. 2025
The sweet interaction ended with an embrace, after which Daniels gave Lopez an orange drink in reference to a viral video about her bodega order.
—Luke Chinman, PEOPLE, 8 Oct. 2025
Two parents from Portland, Oregon, are going viral on the internet for sharing their family’s twist on the Fairy tradition.
—Daniella Gray, MSNBC Newsweek, 8 Oct. 2025
See All Example Sentences for viral
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Aamir Khollam, Interesting Engineering, 9 Oct. 2025
The viral beverage is supposed to support hormone regulation during periods of chronic stress, giving you more energy, improving your sleep, and squashing food cravings.
—Jani Hall, Health, 8 Oct. 2025
The sweet interaction ended with an embrace, after which Daniels gave Lopez an orange drink in reference to a viral video about her bodega order.
—Luke Chinman, PEOPLE, 8 Oct. 2025
Two parents from Portland, Oregon, are going viral on the internet for sharing their family’s twist on the Fairy tradition.
—Daniella Gray, MSNBC Newsweek, 8 Oct. 2025
See All Example Sentences for viral
Cite this Entry
“Viral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/viral. Accessed 10 Oct. 2025.
Copy CitationKids Definition
viral
adjective
vi·ral
ˈvī-rəl 
1
: of, relating to, or caused by a virus
a viral infection
2
: quickly and widely spread or popularized especially by person-to-person electronic communication
a viral video
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