Virological is the adjective related to the study of viruses. There are various synonyms for the word virological: viral, virotic, virucidal, virology, and virulent. The term viral is the most common synonym that is used for virological. It refers to anything related to or caused by viruses. On the other hand, virotic refers to the virus-affected environment or tissue. Virucidal pertains to any substance or process that kills viruses. Virology refers to the study of viruses and virus-like agents. And, virulent means dangerous or harmful, commonly associated with virulent viruses. These synonyms convey the idea of the subject matter related to the study and properties of viruses.