Bible Dictionaries
Hydrometry

Webster's Dictionary

(1):

(n.) The art of determining the specific gravity of liquids, and thence the strength of spirituous liquors, saline solutions, etc.

(2):

(n.) The art or operation of measuring the velocity or discharge of running water, as in rivers, etc.

Bibliography Information
Webster, Noah. Entry for 'Hydrometry'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​h/hydrometry.html. 1828.