red water

noun

: any of several cattle diseases (such as Texas fever) characterized by hematuria

Word History

First Known Use

1594, in the meaning defined above

Time Traveler
The first known use of red water was in 1594

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Cite this Entry

“Red water.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/red%20water. Accessed 1 Oct. 2026.

Medical Definition

red water

noun
: any of several cattle diseases characterized by hematuria
especially : any of several babesioses (as Texas fever) in which hemoglobin released by the destruction of red blood cells appears in the urine

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