UPTURN

\ˈʌptɜːn], \ˈʌptɜːn], \ˈʌ_p_t_ɜː_n]\
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1919 - The Winston Simplified Dictionary
By William Dodge Lewis, Edgar Arthur Singer

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Quinones

  • Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.
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