'blackwater fever' definitions:

Definition of 'blackwater fever'

From: WordNet
noun
Severe and often fatal malaria characterized by kidney damage resulting in dark urine

Definition of 'blackwater fever'

From: GCIDE
  • blackwater \black"wa*ter\ n. any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells; -- used especially of
  • blackwater fever, a severe form of malaria caused by the blood parasite Plasmodium falciparum. [WordNet 1.5 +PJC]