Bible Dictionaries
Phosphoroscope

Webster's Dictionary

(n.) An apparatus for observing the phosphorescence produced in different bodies by the action of light, and for measuring its duration.

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