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2025-07-25

“draconin”的英英意思

单词

draconin

释义

ˈdraconin, -ine Chem.
[f. L. draco dragon.]
The colouring matter in dragon's blood, at first supposed to be alkaline, and named accordingly.
1837Penny Cycl. IX. 118/1 Herberger..calls this colouring matter draconin, and he considers it to possess rather sub-acid properties than such as denote alkalinity.1863–72Watts Dict. Chem. II. 345 Melandri regarded the resin..as an alkaloid, and designated it as draconine, dracenine, or dracine.