noun🔗SharePlaguicidasAnything, 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 used pesticides to kill the insects eating his crops. "El agricultor usó plaguicidas para matar a los insectos que se comían sus cultivos.environmentagriculturesciencesubstancebiologychemistryplantinsectorganismChat with AIVocabulary GamePractice Reading