n, often attrib  :  fever or inflammation esp. from a disease
, vb, fired  fir*ing vt  1  :  to cause to transmit a nerve impulse  2  :  to sear (the leg of a horse) with a hot iron in order to convert a crippling chronic inflammation into an acute inflammation that will stimulate the natural healing responses of the body vi  :  to transmit a nerve impulse <the rate at which a neuron s>  .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2026.