Bible Dictionaries
Clepsydra

Webster's Dictionary

(n.) A water clock; a contrivance for measuring time by the graduated flow of a liquid, as of water, through a small aperture. See Illust. in Appendix.

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