| 单词 | acid radical |
| 释义 | > as lemmasacid radical acid radical n. [after French radical acide (1787 in the passage translated in quot. 1788)] Chemistry a radical derived from an acid by replacement or removal of hydrogen; an anion. ΘΚΠ the world > matter > physics > atomic physics > ion > [noun] > ion with negative charge acid radical1788 anion1834 1788 J. St. John tr. L. B. Guyton de Morveau et al. Method Chym. Nomencl. 39 The chain which appears in certain respects to unite the acid radicals [Fr. les radicaux acides] with the metals. 1869 Eng. Mech. 9 Apr. 58/2 Sulphuric anhydride SO3 when added to water, takes up the oxygen to form a new acid radical. 1947 G. Thomson Atom (ed. 3) xiv. 128 When the salt is formed, water is eliminated and takes with it the oxygen, from the metallic oxide, leaving the metal in combination with the residue of the acid, called the Acid Radical. 1994 Sci. Amer. Jan. 139/3 The life we know needs the acid radical of P[hosphorus]. < as lemmas |
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