D defs.my
Entry 5 senses Webster, 1913

Reservoir

/(rĕz"ẽr*vwôr`; 277)/ · Res·er·voir · IPA /ˈɹɛz.ə(ɹ).vwɑɹ/
01 n. A place where anything is kept in store; especially, a place where water is collected and kept for use when wanted, as to supply a fountain…
  1. 1.
    A place where anything is kept in store; especially, a place where water is collected and kept for use when wanted, as to supply a fountain, a canal, or a city by means of aqueducts, or to drive a mill wheel, or the like.
  2. 2.
    A small intercellular space, often containing resin, essential oil, or some other secreted matter.(Bot.)
  3. 3.
    A large quantity of infectious microorganisms resident in animals other than man, potentially capable of being transmitted to humans.(Med.)
  4. 4.
    a large quantity of infectious microorganisms or parasites resident in animals other than man, potentially capable of being transmitted to humans; especially, such organisms in animals where they do little or no harm to the host.(Med.)
  5. 5.
    A large supply or stock of anything which may be rapidly put to use; a reserve.
Phrases & compounds
Receiving reservoir — a principal reservoir into which an aqueduct or rising main delivers water, and from which a distributing reservoir draws its supply.