Part of speech: verb

To ulcerate; corrupt.

Part of speech: noun

The act of festering; an ulcerous sore.

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Usage examples "fester":

  1. This is the great difficulty of training; for the wounds fester grievously, and months and sometimes years will elapse before an elephant will allow his feet to be touched without indications of alarm and anger. - "Sketches of the Natural History of Ceylon", J. Emerson Tennent.
  2. Sin, like every other disease, is sure, when it is driven onwards, to break out at a fresh point, or fester within some still more deadly, because more hidden and unsuspected, shape. - "Sermons on National Subjects", Charles Kingsley.
  3. But it is a pain that does not rankle and that does not fester like a sore that will not heal. - "A Minstrel In France", Harry Lauder.