pest

Noun
Synonyms: plaguepestilencepestisblightercusspesterergadfly

WordNet 3.0

Noun (4)

  1. 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 animalSynonyms: plaguepestilencepestis
  2. any epidemic disease with a high death rateSynonyms: plaguepestilence
  3. a persistently annoying personSynonyms: blightercusspesterergadfly
  4. any unwanted and destructive insect or other animal that attacks food or crops or livestock etc.“he sprayed the garden to get rid of pests”“many pests have developed resistance to the common pesticides”
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Webster's Dictionary (GCIDE)

Pest \Pest\, n. [L. pestis: cf. F. peste.]

1.A fatal epidemic disease; a pestilence; specif., the plague. [1913 Webster]

England's sufferings by that scourge, the pest.— Cowper.[1913 Webster]

2.Anything which resembles a pest; one who, or that which, is troublesome, noxious, mischievous, or destructive; a nuisance. "A pest and public enemy." --South. [1913 Webster]

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