ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  weed killer - a chemical agent that destroys plants or inhibits their growthAgent Orange - a herbicide used in the Vietnam War to defoliate forest areas As, atomic number 33, arsenic - a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar atrazine - a synthetic compound derived from triazine that is widely used as an agricultural herbicide; "atrazine is thought to cause cancer and is banned in some European countries" chemical, chemical substance - material produced by or used in a reaction involving changes in atoms or molecules linuron - a herbicide that kills weeds without harming vegetables paraquat - a poisonous yellow solid used in solution as a herbicide silvex - a herbicide that is effective in controlling woody plants but is toxic to animals simazine - a herbicide used to control weeds (especially among crops) |
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