- a natural or artificial place where water is collected and stored for use, especially water for supplying a community, irrigating land, furnishing power, etc.
- a receptacle or chamber for holding a liquid or fluid.
- Geology. See under pool1(def 6).
- Biology. a cavity or part that holds some fluid or secretion.
- a place where anything is collected or accumulated in great amount.
- a large or extra supply or stock; reserve: a reservoir of knowledge.
Origin of reservoir
SynonymsSee more synonyms on Thesaurus.com
- a small body of standing water; pond.
- a still, deep place in a stream.
- any small collection of liquid on a surface: a pool of blood.
- a puddle.
- swimming pool.
- a subterranean accumulation of oil or gas held in porous and permeable sedimentary rock (reservoir).
- to form a pool.
- (of blood) to accumulate in a body part or organ.
- to cause pools to form in.
- to cause (blood) to form pools.
- of or for a pool: pool filters.
- taking place or occurring around or near a pool: a pool party.
Origin of pool1
Examples from the Web for reservoir
He finished second in 2008 behind John McCain, and maintains a reservoir of good will among Republican social conservatives.Can Huckabee Convert the GOP’s Moneymen?
January 4, 2015
“The reservoir for filovirus has remained a huge mystery,” Bruenn said in 2010.Ebola's Roots Are 50 Times Older Than Mankind. And That Could Be the Key to Stopping It.
October 20, 2014
Reservoir Dogs did fantastic internationally, so everyone was waiting for my new movie.The Secrets of ‘Pulp Fiction’: 20 Things You Didn’t Know About the Movie on Its 20th Anniversary
October 19, 2014
The animal reservoir for SARS is bats, whereas the reservoir for MERS is primarily camels.Is Middle East Respiratory Syndrome (MERS) the Next SARS?
Dr. Anand Veeravagu, MD, Tej Azad
May 3, 2014
The rains have returned to much of the state, but some reservoir levels are still worryingly low.California May Have Its Driest Season in 500 Years
January 24, 2014
She speedily descended to the reservoir of water, and filled her pitcher.Female Scripture Biographies, Vol. I
Francis Augustus Cox
There's a reservoir below into which they drop when the electric circuit is broken.The Stark Munro Letters
J. Stark Munro
But she was drifting in her blind misery to that reservoir of life, London.A Son of Hagar
Sir Hall Caine
After leaving the reservoir we drove through another quarter of the town.The Last Voyage
Lady (Annie Allnutt) Brassey
Could he have siphoned the water from one reservoir to the other?Common Science
Carleton W. Washburne
- a natural or artificial lake or large tank used for collecting and storing water, esp for community water supplies or irrigation
- a receptacle for storing gas, esp one attached to a stove
- biology a vacuole or cavity in an organism, containing a secretion or some other fluid
- anatomy another name for cisterna
- a place where a great stock of anything is accumulated
- a large supply of something; reservea reservoir of talent
- a small body of still water, usually fresh; small pond
- a small isolated collection of liquid spilt or poured on a surface; puddlea pool of blood
- a deep part of a stream or river where the water runs very slowly
- an underground accumulation of oil or gas, usually forming a reservoir in porous sedimentary rock
- See swimming pool
- any communal combination of resources, funds, etca typing pool
- the combined stakes of the betters in many gambling sports or games; kitty
- commerce a group of producers who conspire to establish and maintain output levels and high prices, each member of the group being allocated a maximum quota; price ring
- finance, mainly US
- a joint fund organized by security-holders for speculative or manipulative purposes on financial markets
- the persons or parties involved in such a combination
- any of various billiard games in which the object is to pot all the balls with the cue ball, esp that played with 15 coloured and numbered balls; pocket billiards
- to combine (investments, money, interests, etc) into a common fund, as for a joint enterprise
- commerce to organize a pool of (enterprises)
- Australian informal to inform on or incriminate (someone)
Word Origin and History for reservoir
1680s, "a place where something tends to collect," originally figurative, from French réservoir "storehouse," from Old French reserver "to reserve" (see reserve (n.)). Specific meaning "artificial basin to collect and store a large body of water" is from 1705.
"small body of water," Old English pol "small body of water; deep, still place in a river," from West Germanic *pol- (cf. Old Frisian and Middle Low German pol, Dutch poel, Old High German pfuol, German Pfuhl). As a short form of swimming pool it is recorded from 1901. Pool party is from 1965.
game similar to billiards, 1848, originally (1690s) a card game played for collective stakes (a "pool"), from French poule "stakes, booty, plunder," literally "hen," from Old French poille "hen, young fowl" (see foal (n.)).
Perhaps the original notion is from jeu de la poule, supposedly a game in which people threw things at a chicken and the player who hit it, won it, which speaks volumes about life in the Middle Ages. The notion behind the word, then, is "playing for money." The connection of "hen" and "stakes" is also present in Spanish polla and Walloon paie.
Meaning "collective stakes" in betting first recorded 1869; sense of "common reservoir of resources" is from 1917. Meaning "group of persons who share duties or skills" is from 1928. From 1933 as short for football pool in wagering. Pool shark is from 1898. The phrase dirty pool "underhanded or unsportsmanlike conduct," especially in politics (1951), seems to belong here now, but the phrase dirty pool of politics, with an image of pool (n.1) is recorded from 1871 and was in use early 20c.
"to make a common interest, put things into a pool," 1871, from pool (n.2). Related: Pooled; pooling.
of liquid, "to form a pool or pools," 1620s, from pool (n.1).
- A fluid-containing sac or cavity.
- An organism or a population that directly or indirectly transmits a pathogen while being virtually immune to its effects.
- A large or extra supply; a reserve.
- A collection of blood in any region of the body due to dilation and retardation of the circulation in capillaries and veins.
- A natural or artificial pond or lake used for the storage of water.
- An underground mass of rock or sediment that is porous and permeable enough to allow oil or natural gas to accumulate in it.
- An organism that is the host for a parasitic pathogen or that directly or indirectly transmits a pathogen to which it is immune.