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Definition of effluent

effluent

/ˈɛfluənt/
ef · flu · ent

Plural:effluents
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effluent Lexical Profile

effluent Game Scores & Validity

• noun

1

Liquid waste or sewage discharged into a river, sea, or other body of water, especially from an industrial plant or treatment facility.

Example

"New environmental regulations require the factory to filter all chemical effluent before releasing it into the river."


2

A stream or river that flows out of a larger body of water, such as a lake, or branches off from a main river channel.

Example

"The small river serves as the primary effluent of the mountain lake, carrying snowmelt toward the coast."

Synonyms
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Antonyms
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• adjective

1

Flowing out or issuing forth from a source, such as water from a lake or impulses from a nerve center.

Example

"The hydrologist mapped the effluent streams that drained the alpine reservoir into the valley below."

Synonyms
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Antonyms
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Word Nuance & Usage

Do not confuse 'effluent' (liquid waste or outflow) with 'affluent' (wealthy or prosperous).

• Rhymes for effluent

Word Origin & Etymology

Borrowed in the mid-18th century from Latin effluens, the present participle of effluere ('to flow out'), formed from ex- ('out') and fluere ('to flow').

Cite this Entry


Wordmom. (2026). Definition of Effluent. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/effluent
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