noun, noun which may take the genitive case particle 'no'
fever; febrile disease
General term for a fever or any illness characterized by high body temperature. Often used in medical or descriptive contexts.
熱病で一週間寝込んだ。
I was laid up for a week with a fever.
熱病の症状には頭痛や悪寒がある。
Symptoms of a febrile disease include headache and chills.
He came down with a feverish illness while traveling.
She was delirious with fever all night long.