scintilloscope

noun

scin·​til·​lo·​scope

variants or less commonly scintilliscope

sin‧ˈtiləˌskōp

: a small instrument similar to the spinthariscope for exhibiting scintillations (as of a radioactive substance) on a sensitive screen

Word History

Etymology

scintillo-, scintilli- (from Latin scintilla) + -scope

First Known Use

1904, in the meaning defined above

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