• (RP) IPA: /ˈfɛstə(ɹ)/
  • (GA) IPA: /ˈfɛstɚ/

fester (plural festers)

  1. (pathology, obsolete) A fistula.
  2. (pathology) A sore#Noun|sore or an ulcer of the skin#Noun|skin.
  3. The condition#Noun|condition of something that festers; a festering#Noun|festering; a festerment.

fester (festers, present participle festering; past and past participle festered)

  1. (intransitive) To become septic; to become rotten.
    • 1671, John Milton, “Samson Agonistes, […]”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: Printed by J. M[acock] for John Starkey […], OCLC 228732398 ↗, lines 521–523, page 42 ↗:
      [W]ounds immedicable / Ranckle, and feſter, and gangrene, / To black mortification.
  2. (intransitive) To worsen, especially due to lack#Noun|lack of attention.
    Deal with the problem immediately; do not let it fester.
  3. (transitive) To cause to fester or rankle.
    • circa 1599–1600 John Marston, Antonios Reuenge. The Second Part. As it hath beene Sundry Times Acted, by the Children of Paules, London: Printed [by Richard Bradock] for Thomas Fisher, and are to be soulde [by Matthew Lownes] in Saint Dunstans Church-yarde, published 1602, OCLC 55160039, Act I, scene i; republished in J[ames] O[rchard] Halliwell, editor, The Works of John Marston. Reprinted from the Original Editions. With Notes, and some Account of His Life and Writings. [...] In Three Volumes, volume I, London: John Russell Smith, Soho Square, 1856, OCLC 458175889, page 74 ↗:
      For which I burnt in inward sweltring hate, / And festred rankling malice in my breast, / Till I might belke revenge upon his eyes: […]