Protopine definitions

Protopine

• (n.) An alkaloid found in opium in small quantities, and extracted as a white crystalline substance.
Found on http://thinkexist.com/dictionary/meaning/protopine/

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Protopine

Pro'to·pine noun [ Proto- + opium .] (Chemistry) An alkaloid found in opium in small quantities, and extracted as a white crystalline substance.
Found on http://www.encyclo.co.uk/webster/P/181

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