tank used for collecting and storing a liquid (as water or oil)
lake used to store water for community use
anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies; "an infectious agent depends on a reservoir for its survival"
a large or extra supply of something; "a reservoir of talent"
precisely determined or limited or defined; especially fixed by rule or by a specific and constant cause; "a determinate distance"; "a determinate number"; "determinate variations in animals"
not continuing to grow indefinitely at the apex; "determinate growth"