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  1. What is a Pesticide? - US EPA

    Feb 13, 2025 · Pesticide law defines a “pesticide” (with certain minor exceptions) as: Any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating …

  2. Pesticide - Wikipedia

    In general, a pesticide is a chemical or biological agent (such as a virus, bacterium, or fungus) that deters, incapacitates, kills, or otherwise discourages pests.

  3. Pesticides | National Institute of Environmental Health Sciences

    Jun 5, 2025 · A pesticide is any substance used to kill, repel, or control certain forms of plant or animal life that are considered to be pests.

  4. Pesticide | Definition & Types | Britannica

    Sep 27, 2025 · Pesticide, any toxic substance used to kill animals, fungi, or plants that cause economic damage to crop or ornamental plants or are hazardous to the health of domestic …

  5. PESTICIDE Definition & Meaning - Merriam-Webster

    The meaning of PESTICIDE is an agent used to destroy pests.

  6. Chemical safety: Pesticides

    Oct 26, 2020 · Pesticides are chemical compounds that are used to kill pests, including insects, rodents, fungi and unwanted plants (weeds). Over 1000 different pesticides are used around …

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  7. PESTICIDE Definition & Meaning | Dictionary.com

    Pesticide definition: a chemical preparation for destroying plant, fungal, or animal pests.. See examples of PESTICIDE used in a sentence.

  8. What is a pesticide? - The Institute for Environmental Research …

    Jun 16, 2025 · A pesticide is any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest. Pests can include insects, rodents, weeds, fungi, …

  9. PESTICIDE | English meaning - Cambridge Dictionary

    The pesticides that farmers spray on their crops kill pests, but they can also damage people's health.

  10. Pesticide - Agriculture Dictionary

    Oct 11, 2025 · Pesticide Definition: A pesticide is any substance or mixture of substances used to control, repel, kill, or mitigate pests, including insects, weeds, pathogens, rodents, nematodes, …