quartan

/หˆkwษ”หtษ™n/

IPA: /K W AA1 R T AH0 N/

noun
  1. 1

    A fever whose symptoms recur every four days.

adjective
  1. 1

    Recurring every four days; especially in designating a form of malaria with such symptoms.

Source: https://en.wiktionary.org/wiki/quartan