[ kwawr-tn ]
/ ˈkwɔr tn /


(of a fever, ague, etc.) characterized by paroxysms that recur every fourth day, both days of consecutive occurrence being counted.


a quartan fever or ague.
quartan malaria.

Origin of quartan

1250–1300; Middle English quartaine < Old French < Latin (febris) quartāna quartan (fever), feminine of quartānus, equivalent to quart(us) fourth + -ānus -an
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Examples from the Web for quartan

British Dictionary definitions for quartan

/ (ˈkwɔːtən) /


(esp of a malarial fever) occurring every third day

Word Origin for quartan

C13: from Latin febris quartāna fever occurring every fourth day, reckoned inclusively
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for quartan

[ kwôrtn ]


Recurring every fourth day, counting inclusively, or every 72 hours. Used of a fever.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.