phosphoroscope

[ fos-fawr-uh-skohp, -for- ]

noun

1. an instrument for measuring the duration of evanescent phosphorescence in different substances.

phosphoroscope

/ fɒsˈfɒrəˌskəʊp /

noun

1. an instrument for measuring the duration of phosphorescence after the source of radiation causing it has been removed

Word History and Origins

Origin of phosphoroscope¹

First recorded in 1855–60; phosphoro- + -scope