blackwater.
Water, especially in a river or other body of water, that has a naturally dark appearance.
Meaning & usage
Water, especially in a river or other body of water, that has a naturally dark appearance. Water that contains dark organic matter such as loam or tannins.
Water, especially in a river or other body of water, that has a naturally dark appearance. Water that is acidic and low in nutrients.
Blackwater fever; malaria caused by Plasmodium falciparum.
Waste from domestic toilets; water containing fecal matter.
Where this word comes from
Etymology tree English black Proto-Indo-European *wed- Proto-Indo-European *-r̥ Proto-Indo-European *wódr̥ Proto-Germanic *watōr Proto-West Germanic *watar Old English wæter Middle English water English water English blackwater From black + water.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.