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spinthariscope

[spin-thar-uh-skohp] /spɪnˈθær əˌskoʊp/
noun
1.
an instrument that detects ionizing radiation by picking up sparks of light from alpha particles.
Related forms
spinthariscopic [spin-thar-uh-skop-ik] /spɪnˌθær əˈskɒp ɪk/ (Show IPA), adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for spinthariscopic

spinthariscope

/spɪnˈθærɪˌskəʊp/
noun
1.
a device for observing ionizing radiation, consisting of a tube with a magnifying lens at one end and a phosphorescent screen at the other. A particle hitting the screen produces a scintillation
Word Origin
C20: from Greek spintharis a little spark + -scope
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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