英语词汇“proto-combination”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	proto-combination
释义	> as lemmas proto-combination † proto-combination n. Obsolete rare the combination of a metal with an electronegative element, radical, etc., such that the electronegative species occurs in the smallest possible proportion. ΚΠ 1854 J. Scoffern in Orr's Circle Sci., Chem. 436 In almost every case..this metal [sc. manganese] will be found in the state of proto-combination,—either as an oxygen salt of the protoxide, or as a protohaloid salt. extracted from proto-comb. form < as lemmas
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