- 1[usually passive] decimate something to kill large numbers of animals, plants, or people in a particular area The rabbit population was decimated by the disease.
- 2decimate something (informal) to severely damage something or make something weaker Cheap imports decimated the American auto industry.
NAmE//ˈdɛsəˌmeɪt//Verb Forms present simple I / you / we / they decimate
he / she / it decimates
past simple decimated
-ing form decimating
decimationjump to other results