Definition of pest in English:

pest

Line breaks: pest
Pronunciation: /pɛst
 
/

noun

  • 1A destructive insect or other animal that attacks crops, food, livestock, etc.: the tomato plant attracts a pest called whitefly an effective method for controlling insect pests [as modifier]: pest control
    More example sentences
    • The biological control of insect pests by using spiders as predators is being studied in four districts of Kerala.
    • The single most destructive insect pest for Eastern growers - the infamous plum curculio - is unknown in the West.
    • Synthetic pesticides sprayed on crops to check insect pests also kill non-target insects.
  • 1.1 informal An annoying person or thing; a nuisance: he was a real pest
    More example sentences
    • He still looked at her as the annoying pest with pigtails.
    • He didn't want her to think of him as an annoying pest.
    • Now the camel and its driver had lost it economic value and became a nuisance and a pest.
  • 1.2 (the pest) • archaic Bubonic plague.
    More example sentences
    • Moreover, the virulence of the pest was the greater by reason the intercourse was apt to convey it from the sick to the whole, just as fire devours things dry or greasy when they are brought close to it.

Origin

late 15th century (denoting the bubonic plague): from French peste or Latin pestis 'plague'.

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