Vital Signs Terminology — Temperature Antipyretic agent which reduces fever Body Temperature balance between heat production and heat loss measured in degrees by clinical thermometer Circadian rhythm A rhythmic repetition in biological events in man at approximately the same time each 24 hours Conduction Flow of heat from one object to another with which there is direct contact Convection transference of heat by means of currents in the air Evaporation loss of heat due to conversion of liquid into vapor Febrile feverish or pertaining to fever Hypothermia abnormally low body temperature Hyperthermia abnormally high body temperature Intermittent fever fever that falls to normal at some time during a 24 hour period Metabolism process by which nutrients are utilized to provide energy and heat Pyrexia fever Radiation emission of heat rays from a center to a cooler surface Relapsing fever fever with one or more days of normalcy between febrile periods Remittent fever fever with marked variations – temperature does not reach normal