Definition

1. Noun:
   • A biological agent or condition that poses a threat to human health or the environment: A "biohazard" is any biological substance, such as a bacterium, virus, toxin, or medical waste, that presents a risk of infection, disease, or environmental harm.
   • The risk or danger posed by such an agent: "Biohazard" can also refer to the state of danger itself resulting from exposure to biological agents.

Examples of Usage

• Noun:
  • The laboratory has strict protocols for handling any potential biohazard.
  • A spill of the infectious agent created a serious biohazard in the facility.
  • The symbol for a biohazard is internationally recognized.

Advanced Usage

• "Biohazard containment": Refers to the methods and facilities used to isolate and control dangerous biological materials.

  • The research is conducted under the highest level of biohazard containment.

• "Biohazard suit": A protective garment designed to shield the wearer from hazardous biological materials.

  • The responders entered the area wearing full biohazard suits.

Variants and Related Words

• Biohazardous (adj): Describing something that constitutes or relates to a biohazard.
  • All biohazardous waste must be disposed of in special containers.

Synonyms

• Biological hazard
• Biopathogen
• Infectious agent (when referring to a disease-causing organism)

Related Phrases

• Biohazard level: A classification system (e.g., BSL-1 to BSL-4) indicating the degree of containment required for a biological agent.

  • This virus is studied in a BSL-4 laboratory due to its high biohazard level.

• Biohazard waste/medical waste: Discarded biological materials, like used needles or cultures, that pose an infection risk.

  • The hospital segregates its biohazard waste for incineration.

Related Idioms

(While there are no common idioms using "biohazard," the term is frequently used in specific professional and public safety contexts.)

Noun

1. any bacterium or virus or toxin that could be used in biological warfare
2. hazard to humans or the environment resulting from biological agents or conditions