单词 | hesper- |
释义 | hesper-comb. form stem of Hesperus n., used in the same sense as hesperid- comb. form, as the radical part of several chemical terms, as heˈsperic adj., hespeˈretic adj., hespeˈrinic adj., hespeˈrisic adj. designating acids. hespeˈretin n., hesperˈetol see quots. ΚΠ 1881 H. Watts Dict. Chem. VIII. 1029 Hesperetic acid, C10H10O4, is likewise formed by the action of alkalis on hesperidin. 1881 H. Watts Dict. Chem. VIII. 1028 Hesperidin is a glucoside, and is resolved by dilute acids into glucose and hesperetin C16H14O6. 1886 New Sydenham Soc. Lexicon HesperetolC9H10O2, a yellowish oil that stiffens in a crystalline manner, obtained by the dry distillation of lime hesperetinate. 1886 New Sydenham Soc. Lexicon Hesperinic acid, C6H6O3,..obtained by the action of nitric acid on Hesperidene. 1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 684 Hesperic acid, C22H28O7, an acid which may be extracted by alcohol from orange peel in water, a product of the decomposition of hesperidin. This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2022). < comb. form1881 |
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