conservancy Meaning, Definition & Usage

  1. noun a commission with jurisdiction over fisheries and navigation in a port or river
  2. noun the official conservation of trees and soil and rivers etc.

WordNet

Con*serv"an*cy noun
Definitions
  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.

Webster 1913