D defs.my
Entry 1 sense Webster, 1913

Conservancy

/kən-sẽrv'-ən-sē/ · Con·serv·an·cy · IPA /[kənˈsɝvənsɪ]/
01 n. Conservation, as from injury, defilement, or irregular use.
  1. 1.
    Conservation, as from injury, defilement, or irregular use.
    “[An act was] passed in 1866, for vesting in the Conservators of the River Thames the conservancy of the Thames and Isis.” — Mozley & W.