reservoir
ARTIFICIAL LAKE IMPOUNDED USING A DAM OR LOCK TO STORE WATER
Artificial lake; Réservoir; Bankside reservoir; Reservoirs; Man-made lake; Artificial lakes; Bankside reservoirs; Reservoir lake; Headpond; Resevoir; Dam reservoir; Water reservoir; Reservoir (water); Man made lake; Manmade lake; Multipurpose reservoir; Storage reservoir; Reservoir dam; Full pool; Artificial Lake; Artificial loch; Service reservoir; Storage pond; Artificial pond; Reservoir Complex; Greenhouse gas emissions from reservoirs; Dam lake; Impounded lake; Impact of climate change on reservoirs; Methane emissions from reservoirs
(reservoirs)
1.
A reservoir is a lake that is used for storing water before it is supplied to people.
N-COUNT
2.
A reservoir of something is a large quantity of it that is available for use when needed.
...the huge oil reservoir beneath the Kuwaiti desert.
N-COUNT: with supp, oft N of n, adj N