1. 
   Meconin
   Mec'o·nin noun [ Confer French méconine .] (Chemistry) A substance regarded as an anhydride of meconinic acid, existing in opium and extracted as a white crystalline substance. Also erroneously called meconina , meconia , et...
   Found op http://www.encyclo.co.uk/webster/M/38
   
   
2. 
   meconin
   <chemistry> A substance regarded as an anhydride of meconinic acid, existing in opium and extracted as a white crystalline substance. Also erroneously called meconina, meconia, etc, as though it were an alkaloid. ... Origin: Cf. F. Meconine. ... Source: Websters Dictionary ... (01 Mar 1998) .....
   Found op http://www.mondofacto.com/facts/dictionary?meconin
   
   
3. 
   Meconin
   • (n.) A substance regarded as an anhydride of meconinic acid, existing in opium and extracted as a white crystalline substance. Also erroneously called meconina, meconia, etc., as though it were an alkaloid.
   Found op http://thinkexist.com/dictionary/meaning/meconin/
   
   
4. 
   meconin
   Type: Term Pronunciation: mek′ŏ-nin Definitions: 1. The lactone of meconic acid, found also in Hydrastis canadensis; a hypnotic. Synonyms: opianyl
   Found op http://www.medilexicon.com/medicaldictionary.php?t=53358
   
   

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