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2 definitions found

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 ammonium alum 名詞
 銨明礬,銨礬

From: WordNet (r) 2.0

 ammonium alum
      n : a white crystalline double sulfate of aluminum: the ammonium
          double sulfate of aluminum [syn: alum, ammonia alum]