The meaning of VIRAL is of, relating to, or caused by a virus. How to use viral in a sentence. viral adjective (INTERNET) used to describe something that quickly becomes very popular or well known by being published on the internet or sent from person to person by email, phone, etc.: Nov 23, 2022 · Viral infections are any illness you get from a virus (a small germ that uses your cells to reproduce). Examples include the flu, colds, COVID-19 and HPV. The word Viral means "relating to viruses " (small infectious agents). It may also refer to: Memetic behavior likened that of a virus, for example: 1. Of, relating to, or caused by a virus. 2. Of or relating to the rapid propagation of information, ideas, or trends by means of social networks rather than conventional mass media: viral marketing. A viral film clip, story, or message is one that spreads quickly because people share it on social media and send it to each other. Aug 17, 2025 · Yet again, something dreadful and new which he doesn't understand is going viral. Today's fad is, you paint a black vertical rectangle on the wall, or on a mirror, or over the top of a picture. Viral refers to anything that rapidly spreads or gains popularity, particularly through sharing and circulation on digital platforms such as social media. Nov 8, 2023 · Viruses cause familiar infections such as the common cold, but they also cause severe illnesses. Learn more about viral infections and their symptoms. pertaining to or involving the spreading of information and opinions about a product or service from person to person, especially on the internet or in emails. a clever viral ad. becoming very popular by circulating quickly from person to person, especially through the internet.