quartan Meaning, Definition & Usage

  1. noun a malarial fever that recurs every fourth day
  2. adjective occurring every fourth day (especially the fever and weakness of malaria)
    • quartan malaria

WordNet

Quar"tan adjective
Etymology
F. quartain, in fièvre quartaine, L. quartanus, fr. quartus the fourth. See Quart.
Definitions
  1. Of or pertaining to the fourth; occurring every fourth day, reckoning inclusively; as, a quartan ague, or fever.
Quar"tan noun
Definitions
  1. (Med.) An intermittent fever which returns every fourth day, reckoning inclusively, that is, one in which the interval between paroxysms is two days.
  2. A measure, the fourth part of some other measure.

Webster 1913