run a fever

(redirected from ran a fever)

run a fever

To be sick with a fever. After my toddler was lethargic all day, I begin to worry that she was running a fever.
See also: fever, run

run a temperature

To have an abnormally high body temperature (a fever), which is indicative of or caused by illness. Dan: "How's Pete feeling?" Marshall: "Well, he ran a temperature last night, but he seemed a lot better this morning after some rest." I think I've started running a temperature. Maybe I should go lie down.
See also: run, temperature

run a fever

Also, run a temperature. Suffer from a body temperature higher than normal, as in She was running a fever so I kept her home from school. These idioms use run in the sense of "cause to move," in this case upward. [Early 1900s]
See also: fever, run