noun
definition
A fever whose symptoms recur every four days.
adjective
definition
Recurring every four days; especially in designating a form of malaria with such symptoms.
Examples of quartan in a Sentence
It is the general rule, with frequent exceptions, that the quotidian paroxysm comes on in the morning, the tertian about noon, and the quartan in the afternoon.
Another rule is that the quartan has the longest cold stage, while its paroxysm is shortest as a whole; the quotidian has the shortest cold stage and a long hot stage, while its paroxysm is longest as a whole.
Quotidian intermittent is on the whole more common than tertian in hot countries; elsewhere the tertian is the usual type, and quartan is only occasional.
Another paroxysm begins at or near the same hour next day (quotidian ague), which results from a double tertian infection, or the interval may be fortyeight hours (tertian ague), or seventy-two hours (quartan ague).