phosphoroscope

American

[fos-fawr-uh-skohp, -for-] / fɒsˈfɔr əˌskoʊp, -ˈfɒr- /

noun

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

phosphoroscope British

/ fɒsˈfɒrəˌskəʊp /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of phosphoroscope

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023