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amphoteric a. 两性的 两性的 amphoteric adj 1: having characteristics of both an acid and a base and capable of reacting as either [synonym: {amphoteric}, {amphiprotic}] [ant: {acidic}, {alkalic}, {alkaline}] amphoteric \am`pho*ter"ic\ ([a^]m`f[-o]*t[e^]r"[i^]k), a. [Gr.
'amfo`teros both.] 1. Partly one and partly the other [1913 Webster] 2. Especially: (Chem.) Having both acidic and basic groups within the same molecule, and consequently neither acid nor alkaline; neutral. [R.] --Smart. [PJC] amphotericin
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