drainage

noun

drain·​age ˈdrā-nij 

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

Flooding of low-lying and/or poor drainage areas may continue for a few hours until the water has had a chance to recede. —Star-Telegram Weather Bot, Fort Worth Star-Telegram, 25 May 2026

Loamy soil creates the perfect environment for plants, balancing moisture, drainage, and nutrients for healthy growth. —Helena Madden, Martha Stewart, 25 May 2026

Since Ian, Orange County has deepened stormwater ponds in the area and repaired damaged pumps to improve flood storage and drainage before future storms. —Greg Bennett, The Orlando Sentinel, 24 May 2026

This prevents hose and wall damage, ensures proper drainage, and allows for quick maintenance. —Maria Sabella, The Spruce, 24 May 2026

Word History

First Known Use

1652, in the meaning defined at sense 1

Kids Definition

drainage

noun

drain·​age ˈdrā-nij 

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 

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)