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

Designed with functionality at the forefront, each pot comes equipped with drainage holes, which help prevent overwatering and ensure water doesn't accumulate at the bottom of the pot, reducing the risk of root rot while promoting healthy growth. —Toni Sutton, People.com, 16 May 2025

The hunter killed the female grizzly May 9 in the Priest Lake drainage area of Idaho’s Panhandle, Idaho Fish and Game said in a May 12 news release. —Helena Wegner, Idaho Statesman, 13 May 2025

The pots are thoughtfully designed with a drainage hole to avoid overwatering, enhance proper airflow, and keep your plants healthy. —Alicia Geigel, Southern Living, 13 May 2025

Another museum, the City of David, shows the archeological history of the city, including what may be David’s palace and the drainage system where Jewish survivors took refuge from the conquering Romans. —Michael Goldstein, Forbes.com, 13 May 2025

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)