Water barometer
Related to Water barometer: mercury barometer, aneroid barometer
Wa´ter ba`rom´e`ter
1. | (Physics) A barometer in which the changes of atmospheric pressure are indicated by the motion of a column of water instead of mercury. It requires a column of water about thirty-three feet in height. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.