About 61,000 results
Open links in new tab
  1. HAZARDOUS Definition & Meaning - Merriam-Webster

    1 day ago · dangerous, hazardous, precarious, perilous, risky mean bringing or involving the chance of loss or injury. dangerous applies to something that may cause harm or loss unless dealt with carefully.

  2. HAZARDOUS | English meaning - Cambridge Dictionary

    Add to word list dangerous and involving risk, especially to someone's health: hazardous industries / materials / substances (Definition of hazardous from the Cambridge Business English Dictionary © …

  3. HAZARDOUS Simple Definition - Merriam-Webster

    Jun 22, 2026 · The simple definition of HAZARDOUS is involving risk or danger : dangerous —sometimes + to.

  4. What is Hazardous? Meaning and 10 Different Examples

    Aug 7, 2023 · “Hazardous” refers to something that poses a threat or danger to human health, the environment, or property. It can describe substances, activities, situations, or conditions that can …

  5. HAZARDOUS Definition & Meaning | Dictionary.com

    HAZARDOUS definition: full of risk; perilous; risky. See examples of hazardous used in a sentence.

  6. NIOSH List of Hazardous Drugs in Healthcare Settings, 2024

    Jul 25, 2025 · This document helps healthcare employers identify drugs considered by NIOSH to be hazardous drugs.

  7. Hazardous - Definition, Meaning & Synonyms | Vocabulary.com

    The noun "hazard" means something dangerous, and the adjective hazardous refers to anything that involves danger. A golf course with lots of sand traps is especially hazardous for golfers.

  8. What Is Hazardous Material? - NFPA

    Apr 15, 2022 · NFPA 400 defines hazardous material as any chemical or substance that is a physical hazard material or a health hazard material. Hazardous materials are then categorized based on the …

  9. What Is a Hazardous Substance? Definition and Types

    Mar 9, 2026 · A hazardous substance is any material that can cause death, disease, cancer, genetic mutations, or other serious harm to people or the environment after exposure.

  10. Defining Hazardous Waste: Listed, Characteristic and Mixed …

    Mar 20, 2026 · A hazardous waste characteristic is a property which, when present in a waste, indicates that the waste poses a sufficient threat to merit regulation as hazardous.