곤충을 죽이는 데 사용하는 화학 물질이나 생물학적 제제.
A chemical substance or biological agent used specifically for killing insects at various stages of their life cycle.
예문:
"The government regulated the sale of the toxic insecticide to protect the local water supply."
"Researchers are developing a new insecticide that targets only specific invasive species without harming bees."
"Excessive use of insecticide can lead to the development of resistant strains of pests."