"of the nature of, or caused by, a virus," 1944, see virus + -al (1). Sense of "become suddenly widely popular through Internet sharing" is attested by 1999, originally in reference to marketing and based on the similarity of the effect to the spread of a computer virus. Related: Virally.
双语例句
1. a viral infection
病毒性感染
来自《权威词典》
2. He is suffering from viral meningitis.
他患病毒性脑膜炎.
来自《简明英汉词典》
3. A variety of viral agents cause aseptic meningitis or meningoencephalitis.
各种病毒性因子可引起无菌性脑膜炎或脑膜脑炎.
来自辞典例句
4. Viral bovine rhinotracheitis simulates and may be combined with shipping fever.
牛病毒性鼻气管炎和运输热相似,并可能和运输热同时发生.
来自辞典例句
5. Animals may serve as a vehicle for viral transmission.
