noun. A biological agent, such as an infectious microorganism, or a condition that constitutes a threat to humans, especially in biological research or experimentation.

noun. The potential danger, risk, or harm from exposure to such an agent or condition.

noun. A biological hazard; a source of risk due to some biological factor such as bacteria or human waste.

noun. hazard to humans or the environment resulting from biological agents or conditions

noun. any bacterium or virus or toxin that could be used in biological warfare

"Although I suppose somebody receiving this is going to end up freaking out and calling the biohazard people."

agent  health hazard  

haphazard  hazard  

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