adjectivehistorical, rare Medicine
Of a fever, especially malaria: having characteristics of both quotidian and tertian fevers; specifically characterized by paroxysms of fever and chills which recur every other day, but with little remission of fever on the intervening day.
This pattern of fever is now thought to be characteristic of falciparum malaria.
nounhistorical, rare Medicine
Semitertian fever; an instance of this.
Mid 16th century; earliest use found in Thomas Cooper (c1517–1594), theologian and bishop of Winchester. As adjective from post-classical Latin semitertianus, adjective.