Any unwanted insect or other organism that attacks and damages crops, reduces the fertility of land or injures or irritates livestock or people.
A persistently annoying person.
a persistently annoying person
any unwanted and destructive insect or other animal that attacks food or crops or livestock etc.
any epidemic disease with a high death rate
a serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal