Water containing loam, tannins, etc., giving it a very dark appearance. / Blackwater fever; malaria caused by Plasmodium falciparum. / Waste from domestic toilets; water containing fecal matter.

plural of blackwater

A surname from Navajo used by the Navajo people. / A river in Essex, England, which flows into the North Sea at Bradwell. / A village near St Austell, Cornwall.

(pathology) A complication of malaria in which red blood cells burst in the bloodstream, consequently coloring the urine dark red or black.

plural of blackwater fever

(informal) Nebraska

Travelling by raft in water where there are no rapids.