insecticide
noun
- pesticide used against insects
Wiktionary
Pronunciation: /ɪnˈsɛk.tɪˌsaɪd/ / /ɪnˈsɛk.təˌsaɪd/
noun
Etymology: From French insecticide, as insect + -icide.
- Any of various substances used to kill insects.
“The dried seed powder of custard apple (Annona squamosa L; family: Annonaceae) has been used as an insecticide in India and many other tropical countries since ancient times.”