What does it mean when a patient is afebrile?

Medical Definition of afebrile

: free from fever : not marked by fever.

Is pyrexia a medical term?

Fever, also referred to as pyrexia, is defined as having a temperature above the normal range due to an increase in the body's temperature set point. There is not a single agreed-upon upper limit for normal temperature with sources using values between 37.2 and 38.3 °C (99.0 and 100.9 °F) in humans.