Black water - Definition

Blackwater can refer to:

• Blackwater River, the name of numerous rivers.
• Blackwater, a type of river in the southeastern United States characterized by a slow moving channel through wetlands.
• Blackwater, a term used for sewage containing fecal matter, in contrast with gray water that is the waste water from kitchen sink drains, washing machines, and other washings.
• Black water, a dark discoloration of sea water reported off the Florida coast by fishermen in 2002.
• Blackwater, Queensland, a mining town in Australia
• Blackwater USA, the security consulting firm.
• Blackwater fever, a particular acute kidney disease characterised by the leakage of blood from the kidneys into the urine, where it has a dark appearance when voided.
• Blackwater rafting, rafting at night or on rivers running through caves.