hydrogen
n. 氢 [化] 氢H-2
发音
词形变化
别名
教材释义与例句
[化学] 氢
Hydrogen is a colourless gas that is the lightest and commonest element in the universe
氢
Water contains hydrogen and oxygen.
水含有氢和氧。
Water can be reduced to oxygen and hydrogen by electrolysis.
水通过电解可以分解为氧和氢。
The first bubbles to escape from the liquid are a mixture of air and hydrogen.
从该液体中最先逸出的气泡是空气和氢的混合物。
释义与例句
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1.
The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.
氢
水素
不可数 化学 可数Our professor then reminded us that a hydrogen ion is merely a proton, and thus we should think about acid-base theory as we consider this problem further.
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2.
The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.
An atom of this element.
可数 化学 不可数Each carbon of the ring has one hydrogen attached except for the fourth one, which is bonded to a substituent.
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3.
Molecular hydrogen (sense 1; symbol H₂), a colourless, odourless and flammable gas at room temperature.
不可数 化学 可数A large tank of hydrogen constituted most of the bulk of that rocket.
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4.
Molecular hydrogen (sense 1; symbol H₂), a colourless, odourless and flammable gas at room temperature.
A molecule of this molecular species.
氢气
可数 化学 不可数 -
5.
Synonym of protium (“the lightest and most common isotope of hydrogen (sense 1; symbol H, ¹H, or 11H), as contrasted with deuterium and tritium”).
不可数 化学 可数Both hydrogen and deuterium are present in every glass of water that you drink, but the amount of deuterium is rather small.
词汇关系
相关短语
词源
Etymology tree Proto-Indo-European *wed- Proto-Indo-European *-r̥ Proto-Indo-European *wódr̥ Proto-Hellenic *údōr Ancient Greek ῡ̆̔́δωρ (hū̆́dōr) Ancient Greek ὑδρο- (hudro-)lbor. French hydro- Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek -γενής (-genḗs)lbor. French -gène French hydrogènebor. English hydrogen Borrowed from French hydrogène (“hydrogen”), coined by the French chemists Louis-Bernard Guyton de Morveau (1737–1816) and Antoine Lavoisier (1743–1794) from hydro- (prefix meaning ‘water’) + -gène (suffix denoting a producer of something), from the fact that water is produced as a compound when hydrogen is oxidized. * The prefix hydro- is borrowed from Ancient Greek ῠ̔δρο- (hŭdro-), from ῡ̆̔́δωρ (hū̆́dōr, “water”), ultimately from Proto-Indo-European *wed- (“water”). * The suffix -gène is borrowed from Ancient Greek -γενής (-genḗs, suffix meaning ‘born in a certain condition or place’), from γένος (génos, “descendant, offspring; race; etc.”) (ultimately from Proto-Indo-European *ǵenh₁- (“to beget, produce; to give birth”)) + -ης (-ēs, suffix forming some third-declension adjectives). By surface analysis, hydro- (prefix meaning ‘water’) + -gen (suffix denoting a producer of something).
来源：wiktionary