英语词汇“protagon”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	protagon
释义	protagon Physiol. Chem.\|ˈprəʊtəgɒn\| [a. G. protagon (Liebreich), f. Gr. πρῶτ-ος first + ἄγον, neut. pres. pple. of ἄγειν to lead.] A highly complex crystalline substance, containing nitrogen and phosphorus, found in brain and nerve tissue. 1869Roscoe Elem. Chem. xli. 407 The Brain and other nerve-centres contain a substance termed Protagon.1871H. Spencer Princ. Psychol. (ed. 2) I. i. v. 83 Fibrous nerve-tissue is chemically distinguished from..vesicular nerve-tissue by the presence..of a substance called protagon.1904Titchener tr. Wundt's Physiol. Psychol. I. 54 Protagon, a highly complex body, to which Liebreich [Ann. Chem. & Phar. CXXXIV. (1865) 29] has assigned the empirical formula C₁₁₆H₂₄₁N₄PO₂₂.
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