n.
Pronunciation: ' re-z ə - ˌ vwär, -z ə r-, - ˌ vwo ̇ r also - ˌ vo ̇ i
Function: noun
Etymology: French réservoir, from Middle French, from reserver
Date: 1690
1 : a place where something is kept in store: as a : an artificial lake where water is collected and kept in quantity for use b : a part of an apparatus in which a liquid is held c : SUPPLY , STORE <a large reservoir of educated people>
2 : an extra supply : RESERVE
3 : an organism in which a parasite that is pathogenic for some other species lives and multiplies usually without damaging its host