A cold sore, an outbreak of vesicles caused by herpes simplex viral infection, especially when recurring during another illness that causes fever.

At fever pitch; extremely excited.

plural of sun-fever

plural of sun fever

A feverish condition brought on by overheating in the sun; sunstroke.

Alternative form of sun fever

(colloquial) The anxious excitement felt by a prisoner whose release is imminent.

Synonym of Potomac horse fever / (informal) A desire for political power.

(medicine) An infection of the liver with Babesia canis, most often affecting dogs.

Synonym of erythema nodosum