quartan UK /ˈkwɔːtən/US /ˈkwɔɹtən/adjective 1noun 1forms 1 adjective1 •Recurring every four days; especially in designating a form of malaria with such symptoms.Pork, of all meats, is[…]naught for queasy stomachs, insomuch that frequent use of it may breed a quartan ague. — 1621 noun1 •A fever whose symptoms recur every four days. formsquartans
