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A solid, toxic, selective herbicide, C9H7O3Cl3, formerly used chiefly to control woody plants and aquatic weeds.

[Probably Latin silva, forest + ex(terminator).]


(Chemistry) a herbicide that eradicates weeds and woody plants
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.silvex - a herbicide that is effective in controlling woody plants but is toxic to animals
herbicide, weed killer, weedkiller - a chemical agent that destroys plants or inhibits their growth
References in periodicals archive ?
41) In March, Judge Otto Skopil issued a temporary injunction banning the use of 2,4,5-T and Silvex pending Forest Service explanation of the effects of dioxin on human and animal health.
Silvex aluminum flake pigments range from very fine particle size for a satin metallic appearance to larger-sized particles for a sparkle effect.
We've recently taken the Triple-Shock design a step further by adding a streamlined Delrin tip and a patented, heavier-than-lead Silvex core.