病毒 bìngdú virus
How to remember 病毒: 病 disease + 毒 poison = virus.
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How it is used
- Virus - both biological and computer - 感染病毒 (gǎnrǎn bìngdú) catch a virus, 电脑病毒 (diànnǎo bìngdú) computer virus.
- 病 (disease) + 毒 (poison); the same word covers medical and IT senses, disambiguated by context.
- Also 病毒式传播 (bìngdúshì chuánbō) to spread virally.