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.

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.

To put into a fever; to affect with fever; as, a fevered
lip.