['blækˏwɔ:tә(r)]
n.
[医]黑尿病

[ noun ]
any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells
<noun.state>

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]