Bible Dictionaries
Hourglass

Webster's Dictionary

(n.) An instrument for measuring time, especially the interval of an hour. It consists of a glass vessel having two compartments, from the uppermost of which a quantity of sand, water, or mercury occupies an hour in running through a small aperture unto the lower.

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