mec·o·nin /-ˌnɪn/ 名詞
  罌慄內酯,罌粟素
  Mec·o·nin n.  Chem. 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.
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