英语词汇“betulin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	betulin
释义	betulinn. /ˈbɛtjʊlɪn/ Etymology: < Latin betula birch + -in suffix¹. ‘A resinous substance extracted from the outer bark of the birch-tree ( Betula alba), or from the tar prepared therefrom.’ Watts Dict. Chem. 1879. This entry has not yet been fully updated (first published 1887; most recently modified version published online January 2018). < n.
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betulinn.