water-inch

[waw-ter-inch, wot-er-]
noun Hydraulics.
  1. the quantity of water (approx. 500 cubic feet) discharged in 24 hours through a circular opening of one inch diameter leading from a reservoir in which the water is constantly only high enough to cover the orifice.

Origin of water-inch

First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018