Word Study
herbicide
OXFORD DICTIONARY
herbicide, n. a substance toxic to plants and used to destroy unwanted vegetation.
THESAURUS
herbicide
aborticide, acaricide, anthelmintic, antibiotic, antiseptic, bug bomb, carbamate insecticide, chemosterilant, chlorinated hydrocarbon insecticide, contact poison, defoliant, disinfectant, eradicant, fratricide, fumigant, fungicide, genocide, germicide, homicide, infanticide, insect powder, insecticide, matricide, microbicide, miticide, organic chlorine, organic phosphate insecticide, parricide, patricide, pesticide, poison, rat poison, regicide, roach paste, roach powder, rodenticide, sororicide, stomach poison, suicide, systemic, systemic insecticide, toxic, toxicant, toxin, uxoricide, venin, venom, vermicide, virus, weed killerFor further exploring for "herbicide" in Webster Dictionary Online