Definition of "biohazard" [biohazard]

• 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)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Although I suppose somebody receiving this is going to end up freaking out and calling the biohazard people."
• "He tells TMZ. com, "I confirmed that urine was not classified as a biohazard waste and not subject to the risks of legal ramifications of blood, semen, or faeces.""
• "TMZ that prior to the show he had "confirmed that urine was not classified as a biohazard waste and not subject to the risks of legal ramifications of blood, semen, or feces.""