noun. any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells.
- black (English)
- black (Middle English (1100-1500))
- water (English)
- water (Middle English (1100-1500))
Sentences with blackwater
1. Noun, singular or mass
Mobile homeowners may also opt for composting toilets, which completely remove the need for blackwater (the water from your toilet) disposal.