viral

形容词 viral:

1. relating to or caused by a virus

1. The study of viruses and viral diseases.
   病毒学一种病毒和病毒性疾病的研究
2. An acute contagious viral infection characterized by inflammation of the respiratory tract and by fever, chills, muscular pain, and prostration.
   流行性感冒一种急性的有传染性的病毒感染，主要特征是呼吸道感染和发烧、寒战、肌肉疼痛和虚脱
3. A gene that causes the transformation of normal cells into cancerous tumor cells, especially a viral gene that transforms a host cell into a tumor cell.
   致癌基因导致正常细胞转变为癌变细胞的基因，尤其是一种把寄主的细胞变为肿瘤细胞的病毒基因

vi.ral

adj.（形容词）
Of, relating to, or caused by a virus.
病毒的：关于病毒的或由病毒引起的

【引伸】
vi.rally
adv.（副词）