| 单词 | hydrogen bond |
| 释义 | > as lemmashydrogen bond hydrogen bond n. a weak bond between a strongly electronegative atom with a lone pair of electrons in one molecule and a hydrogen atom covalently bonded to another strongly electronegative atom or group in the same or a different molecule. ΘΚΠ the world > matter > chemistry > chemical bonding > [noun] > covalent bonding > hydrogen bonding hydrogen bond1923 hydrogen-bonding1936 1923 G. N. Lewis Valence ix. 109 The hydrogen atom can form a loose attachment to another pair of electrons, thus forming the hydrogen bond. 1939 L. Pauling Nature Chem. Bond ix. 264 Although the hydrogen bond is not a strong bond..it has great significance in determining the properties of substances. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) XIV. 387/2 Ordinary ice consists of water molecules joined together by hydrogen bonds in a regular arrangement. 1970 E. J. Ambrose & D. M. Easty Cell Biol. iii. 110 When double-stranded DNA is heated to near 100°C, the hydrogen bonds between the two chains break and the strands separate. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。