rat·​i·​cide ˈra-tə-ˌsīd How to pronounce raticide (audio)
: a substance for killing rats

Word History

First Known Use

1908, in the meaning defined above

Time Traveler
The first known use of raticide was in 1908

Dictionary Entries Near raticide

Cite this Entry

“Raticide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/raticide. Accessed 2 Mar. 2024.

Medical Definition


rat·​i·​cide ˈrat-ə-ˌsīd How to pronounce raticide (audio)
: a substance (as red squill) for killing rats
raticidal adjective
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!