'Quintan' definitions:

Definition of 'Quintan'

From: GCIDE
  • Quintan \Quin"tan\, a. [L. quintanus, fr. quintus fifth, quinque five. See Five.] Occurring as the fifth, after four others also, occurring every fifth day, reckoning inclusively; as, a quintan fever. -- n. (Med.) An intermittent fever which returns every fifth day, reckoning inclusively, or in which the intermission lasts three days. [1913 Webster]