{ Hy`dro*met"ric (?), Hy`dro*met"ric*al (?), }
a. [Cf. F. hydromètrique.]
1. Of or pertaining to an hydrometer, or to the
determination of the specific gravity of fluids.
2. Of or pertaining to measurement of the
velocity, discharge, etc., of running water.
3. Made by means of an hydrometer; as,
hydrometric observations.
Hydrometric pendulum,
a species of
hydrometer consisting of a hollow ball of ivory or metal suspended by
a treated from the center of a graduated quadrant, and held in a
stream to measure the velocity of the water by the inclination given
to the thread; a kind of current gauge.