IPA: /ˈrætɪˌsaɪd/
KK: /ˈrætɪˌsaɪd/
A substance that is used to kill rats.
The farmer used raticide to control the rat population in his barn.
Raticide → It is formed from "rat" (from Latin *rattus*, meaning rat) and "-cide" (from Latin *caedere*, meaning to kill). The word "raticide" refers to a substance or agent that kills rats.
Think of the word 'rat' combined with '-cide' which means to kill — this helps you remember that 'raticide' is something that kills rats.