Definition of quartan in English:

quartan

Syllabification: quar·tan
Pronunciation: /ˈkwôrtn
 
/

adjective

[attributive] Medicine
Denoting a mild form of malaria causing a fever that recurs every third day: quartan fever
  • Quartan malaria (or quartan ague) is caused by infection with Plasmodium malariae. Compare with tertian
More example sentences
  • As the criminal had a quartan fever, Fallopius wished to investigate the effects of opium on the paroxysms.
  • He suffered for about eighteen months from the quartan fever which is a fever which recurs at approximately 72-hour intervals.
  • I had a quartan ague which held me foure or five months, and had altogether disvisaged and altered my countenance, yet my mind held ever out, not onely peaceably but pleasantly…

Origin

late Middle English: from Latin (febris) quartana, based on quartus 'fourth' (because, by inclusive reckoning, the fever recurs every fourth day).

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Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict