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

pentabasic adj.

Brit.

/ˌpɛntəˈbeɪsɪk/

U.S.

/ˌpɛn(t)əˈbeɪsɪk/

[compare French pentabasique (1847 or earlier)] Chemistry and Biochemistry (of an acid or acidic group) having five replaceable hydrogen atoms; (also) containing five atoms of base, or consisting of five bases.

ΚΠ

1854 J. W. Draper Kane's Elements Chem. (Amer. ed.) xix. 524 The basis of the red prussiate of potash should be, then, another polymeric cyanogen, Cy₆, which would form, with hydrogen, a pentabasic acid.

1910 Jrnl. Amer. Chem. Soc. 32 192 Compare..the strongly acid character of the monoxanthyl derivatives which form pentabasic salts.

1954 T. Vickerstaff Physical Chem. Dyeing (ed. 2) xii. 398 Tetrabasic and even pentabasic acid dyes appear to occupy the equivalent number of sites in wool.

1990 Growth Factors 2 128/1 There is a pentabasic Arg-Arg-Lys-Lys-Arg site preceding the N-terminus..at positions 296–300.

单词	pentabasic
释义	> as lemmas pentabasic pentabasic adj. Brit. /ˌpɛntəˈbeɪsɪk/ , U.S. /ˌpɛn(t)əˈbeɪsɪk/ [compare French pentabasique (1847 or earlier)] Chemistry and Biochemistry (of an acid or acidic group) having five replaceable hydrogen atoms; (also) containing five atoms of base, or consisting of five bases. ΚΠ 1854 J. W. Draper Kane's Elements Chem. (Amer. ed.) xix. 524 The basis of the red prussiate of potash should be, then, another polymeric cyanogen, Cy₆, which would form, with hydrogen, a pentabasic acid. 1910 Jrnl. Amer. Chem. Soc. 32 192 Compare..the strongly acid character of the monoxanthyl derivatives which form pentabasic salts. 1954 T. Vickerstaff Physical Chem. Dyeing (ed. 2) xii. 398 Tetrabasic and even pentabasic acid dyes appear to occupy the equivalent number of sites in wool. 1990 Growth Factors 2 128/1 There is a pentabasic Arg-Arg-Lys-Lys-Arg site preceding the N-terminus..at positions 296–300. extracted from penta-comb. form < as lemmas
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> as lemmas