drainage

noun

drain·​age ˈdrā-nij How to pronounce drainage (audio)
1
: the act, process, or mode of draining
also : something drained off
2
: a device for draining : drain
also : a system of drains
3
: an area or district drained

Examples of drainage in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The soil should contain coco coir or peat moss for moisture retention, pine bark fines or orchid bark to support root health, and perlite or pumice to help improve drainage and prevent compaction. Rae Ford, Martha Stewart, 11 Feb. 2026 Remove or poke holes in the foil wrap for drainage. Clarence Schmidt, San Diego Union-Tribune, 11 Feb. 2026 During heavy rain, avoid parking or walking near culverts or drainage ditches, where swift-moving water can pose a serious risk. Southern California Weather Report, Daily News, 11 Feb. 2026 Nearly three decades after a 23-year-old woman was found stabbed to death in a drainage ditch in Azusa, California, prosecutors announced charges Monday against a 63-year-old man in a long-cold homicide case that investigators said was solved through DNA evidence. Ashley Carnahan, FOXNews.com, 10 Feb. 2026 See All Example Sentences for drainage

Word History

First Known Use

1652, in the meaning defined at sense 1

Time Traveler
The first known use of drainage was in 1652

Browse Nearby Words

Cite this Entry

“Drainage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/drainage. Accessed 14 Feb. 2026.

Kids Definition

drainage

noun
drain·​age ˈdrā-nij How to pronounce drainage (audio)
1
a
: the act of draining
b
: something drained off
2
: a method of draining
also : a system of drains

Medical Definition

drainage

noun
drain·​age ˈdrā-nij How to pronounce drainage (audio)
1
: the act or process of drawing off fluids from a cavity or wound by means of suction or gravity
2
: a process of releasing internal conflicts or pent-up feelings (as hostility or guilt)

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