noun
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the process or a method of draining
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a system of watercourses or drains
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liquid, sewage, etc, that is drained away
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of drainage
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“The drainage operation represents one phase of the cleanup and disposal process. Air monitoring will continue throughout cleanup operations,” the OC Health Care Agency said in a news release Friday.
From Los Angeles Times • Jun. 27, 2026
They expanded the requirements needed in concept plans, including detailed disclosures on water sourcing, energy use and infrastructure, environmental and drainage impacts.
From Salon • Jun. 6, 2026
"They needed to fix the drainage and not just paint it blue to make it look bright."
From Barron's • May 15, 2026
This year, attendees can sign up for free massages, red light therapy sessions, lymphatic drainage boots, and—thanks in part to a partnership with LEGO—partake in a series of analog “adult play” installations.
From Slate • May 8, 2026
Like the raised beds in temperate-zone gardens, they promote drainage and increase the amount of topsoil available to plants.
From "1491" by Charles C. Mann
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
