| pesticide | <pharmacology> A chemical which is used to kill unwanted organisms such as rats, insects, nematodes, etc. Pesticides often act as nerve poisons, and they are hazardous to animals and humans (some pesticides can cause nerve or liver damage, birth defects and cancer). See: biological magnification and herbicide. (09 Oct 1997) |
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| pesticide residues | Pesticides or their breakdown products remaining in the environment following their normal use or accidental contamination. (12 Dec 1998) |
| pesticide synergists | Chemicals that, while not possessing inherent pesticidal activity, nonetheless promote or enhance the effectiveness of other pesticides when combined. (12 Dec 1998) |
| pesticides | Chemicals used to destroy pests of any sort. The concept includes fungicides (fungicides, industrial), insecticide, rodenticides, etc. (12 Dec 1998) |