noun🔗SharePlaguicidaAnything, especially a synthetic substance but also any substance (e.g. sulfur), or virus, bacterium, or other organism, which kills or suppresses the activities of pests."The farmer sprayed pesticide on his crops to protect them from insects. "El agricultor roció plaguicida en sus cultivos para protegerlos de los insectos.substanceenvironmentagriculturechemistrybiologyecologyplantinsectorganismtechnicalChat with AIVocabulary GamePractice Reading