Definitions For Pest

noun

• Any unwanted and destructive insect or other animal that attacks food or crops or livestock etc.
• A persistently annoying person
• 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
• An animal or insect that causes problems for people especially by damaging crops
• A person who bothers or annoys other people