[ter.tian] adj [ME tercian, fr. L tertianus, lit., of the third, fr. tertius third--more at third] (14c): recurring at approximately 48-hour intervals--used of malaria
[2]tertian n (14c): a tertian fever (as vivax malaria)
[ter.tian] adj [ME tercian, fr. L tertianus, lit., of the third, fr. tertius third--more at third] (14c): recurring at approximately 48-hour intervals--used of malaria
[2]tertian n (14c): a tertian fever (as vivax malaria)
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012