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Definition of fever:

  1. A diseased state of the system, marked by increased heat, acceleration of the pulse, and a general derangement of the functions, including usually, thirst and loss of appetite. Many diseases, of which fever is the most prominent symptom, are denominated fevers; as, typhoid fever; yellow fever.
  2. Excessive excitement of the passions in consequence of strong emotion; a condition of great excitement; as, this quarrel has set my blood in a fever.
  3. To put into a fever; to affect with fever; as, a fevered lip.


delirium, hyperthermia, febrility, excitement, febrile disease, feverishness, restlessness, pyrexia, hyperpyrexia, flush, frenzy, febricity.

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