seep·​age | \ ˈsē-pij How to pronounce seepage (audio) \

Definition of seepage

1 : the process of seeping : oozing
2 : a quantity of fluid that has seeped (as through porous material)

Examples of seepage in a Sentence

Check for seepage in the basement.
Recent Examples on the Web Orange County Supervisor Katrina Foley said Saturday that repeated issues with oil seepage in the waters off Huntington Beach were damaging the city’s reputation as a tourism destination. Matthew Ormseth, Los Angeles Times, 21 Nov. 2021 Several residents expressed support, citing environmental hazards such as chemical seepage and concerns about methane emissions. Ben Brasch, ajc, 16 Nov. 2021 In 1999 an undersea pipeline that leaked at least 3,800 gallons oil caused tar balls to wash up on Orange County beaches, and tar balls washed up at Newport and Huntington beaches in 2016 from natural offshore seepage. Julia Musto, Fox News, 8 Oct. 2021 Nearby, just north of the Santa Ana River, workers in white hazmat suits and helmets monitored seepage from the spill into more than 140 acres of wetlands that stretch along the other side of the highway from the ocean. Maeve Reston, CNN, 5 Oct. 2021 In addition, since Cup drivers raced here in May, Turn 2 has been repaired and repaved after water seepage had led to continuing issues with the surface. Pete Iacobelli,, 5 Sep. 2021 The wall no longer serves its practical function—another was built behind it—but the floor is often damp with seepage, where the city meets bedrock. Emily Witt, The New Yorker, 9 Sep. 2021 Since Cup drivers raced here in May, Turn 2 has been repaired and repaved after water seepage had led to continuing issues with the surface., 4 Sep. 2021 Flores, the tribal chairwoman, said some parts of the 232-mile (373-kilometer) concrete and earthen canal are lined and others aren't, so water is lost through seepage or cracks. Felicia Fonseca, ajc, 5 July 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seepage.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of seepage

circa 1825, in the meaning defined at sense 1

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The first known use of seepage was circa 1825

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Last Updated

25 Nov 2021

Cite this Entry

“Seepage.” Dictionary, Merriam-Webster, Accessed 30 Nov. 2021.

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English Language Learners Definition of seepage

: an occurrence in which a liquid or gas flows or passes slowly through small openings

More from Merriam-Webster on seepage

Britannica English: Translation of seepage for Arabic Speakers Encyclopedia article about seepage


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