deratization

[ dee-rat-uh-zey-shuh n ]
/ diˌræt əˈzeɪ ʃən /

noun

extermination of rats, especially aboard a merchant vessel.
Also especially British, de·rat·i·sa·tion.

Origin of deratization

First recorded in 1910–15; deratize + -ation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019