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Nobili's ring

noun No·bi·li's ring \ ˈnȯbəlēz- , ˈnōb- \
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Definition of Nobili's ring

: one of the colored rings formed upon a metal plate by electrolytic deposition (as of copper or lead peroxide) —usually used in plural

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Origin and Etymology of nobili's ring

after Leopoldo Nobili †1835 Italian physicist

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