reservoir
Concise Oxford English Dictionary © 2008 Oxford University Press:
reservoir/ˈrezəvwɑː(r)/
▶noun
- 1 a large natural or artificial lake used as a source of water supply.
■ a supply or source of something.
- 2 a place where fluid collects, especially in rock strata or in the body.
- 3 a receptacle or part of a machine designed to hold fluid.
– origin C17: from Fr. réservoir, from réserver ‘to reserve, keep’.
'reservoir' also found in these Oxford entries:
catchment area
- dam
- font
- fountain pen
- laccolith
- offtake
- sight glass
- sinus
- sump
- tank
