nonan malaria

no·nan ma·lar·i·a

a malarial fever with paroxysms that occur every ninth day, that is, every eighth day following the preceding paroxysm, the day of each paroxysm being included in the computation.

nonan malaria

An obsolete term for malaria in which the fever paroxysms occur in nine-day cycles (with the first and last days included in the computation).