in·fest /ɪnˈfest/ verb [transitiveT]1 HBLOT/LARGE NUMBER OR AMOUNTif insects, rats etc infest a place, there are a lot of them and they usually cause damage 〔昆蟲、老鼠等〕成群侵擾,大批出沒於be infested with somethingThe kitchen was infested with cockroaches. 廚房裏到處是蟑螂。
shark-infested/rat-infested etcshark-infested waters 鲨魚成群出沒的水域
2 if a place is infested with things or people you do not want, there are too many of them there 〔不想要的人或物〕遍布於be infested with somethingan area infested with holiday homes 到處都是度假屋的地區
n Grammar Infest is usually passive.
—infestation /ˌɪnfeˈsteɪʃən/ noun [countableC, uncountableU]