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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
“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
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Word History and Origins

Origin of phosphoroscope1

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

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phosphoro-phosphorous