单词	Markovnikov rule
释义	Markovnikov rule noun Mar·​kov·​ni·​kov rule märˈkȯvnəˌkȯf- : a statement in chemistry: in the addition of compounds to olefins the negative portion of the compound added (as the bromine in hydrogen bromide) becomes attached to the least hydrogenated end of the carbon-carbon double bond (as in the addition of hydrogen bromide to propylene: CH3CH=CH2+HBr→CH3CHBrCH3) Word History Etymology after Vladimir V. Markovnikov †1904 Russian chemist
随便看	tuberization tuberless tuberoid tuberose tuberoses tuberosities tuberosity tuberous tuberous begonia tuberous root tuberous water lily tuberous-rooted tubers tubes tubeworks tubeworms tubfast tubfish tubfishes tubful tubfuls tubi- Tubicola Tubicolae tubicolar

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