noun (n)

• a purulent infection at the end of a finger or toe in the area surrounding the nail(noun.state)

  Synonym:
  felon
  

  source: wordnet30
• An inflammation of the fingers or toes, generally of the last phalanx, terminating usually in suppuration. The inflammation may occupy any seat between the skin and the bone, but is usually applied to a felon or inflammation of the periosteal structures of the bone.(noun)

  source: webster1913