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单词 nicotine
释义 nic·o·tine
\ˈnikəˌtēn, ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷\ noun
(-s)
Etymology: French, from New Latin Nicotiana + French -ine
1. : a very poisonous volatile weakly basic liquid alkaloid C10H14N2 that constitutes the chief active principle of tobacco, that darkens on exposure, that causes an acrid burning sensation in the mouth, that is obtained usually as a by-product of the tobacco industry, and that is used as an insecticide in various forms (as the free alkaloid or as a solution of the sulfate)
2. : flowering tobacco
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