单词 | zwitterion |
释义 | Word Frequency zwitterion(ˈtsvɪtərˌaɪən) noun chemistry an ion that carries both a positive and a negative charge Derived forms zwitterionic (ˌtsvɪtəraɪˈɒnɪk) adjective Word origin C20: from German Zwitter hermaphrodite + ion |
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