quartan

An obsolete adjective describing a fever that recurs every fourth day, historically used in medical contexts.

• 🇨🇳过时的形容词，描述每第四天发作一次的发热，历史上用于医学语境。

1. Recurring every fourth day C2 formal medical

   Describing a fever or illness, especially a type of malaria, that recurs every fourth day (counting the day of occurrence as the first).

   • The patient was diagnosed with quartan malaria.
   • Quartan fevers were historically common in certain regions.
   • The doctor noted the quartan pattern of the recurring symptoms.

   🇨🇳四日热

A noun referring to a type of malarial fever that recurs every fourth day.

• 🇨🇳名词，指一种每隔三天（即每第四天）发作一次的疟疾（四日疟）。

1. Malarial fever C2 formal medical

   A type of malaria characterized by fever that recurs every fourth day (counting the day of the fever as day one).

   • The patient was diagnosed with quartan malaria after experiencing periodic fevers.
   • Quartan fever is caused by the parasite Plasmodium malariae.
   • Historically, quartan was a common form of malaria in temperate regions.

   🇨🇳四日疟