oxygen
n. 氧 [化] 氧O-2
发音
词形变化
别名
教材释义与例句
[化学] 氧气，[化学] 氧
a gas that has no colour or smell, is present in air, and is necessary for most animals and plants to live. It is a chemical element: symbol O
氧气， 氧
The human brain needs to be without oxygen for only four minutes before permanent damage occurs.
人脑缺氧只需4分钟就会造成永久性损伤。
释义与例句
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1.
The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas. Sometimes called elemental oxygen to distinguish it from molecular oxygen.
氧
酸素
可数 不可数Holonyms: dioxygen, O₂, oxygen (loose sense)
By molar fraction, calcium oxide contains equal parts calcium and oxygen.
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2.
Molecular oxygen (O₂), a colorless, odorless gas at room temperature.
氧气
酸素
可数 不可数Meronym: oxygen (strict sense)
About 21% of the air you breathe is oxygen.
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3.
A mixture of oxygen and other gases, administered to a patient to help them breathe.
可数 不可数 医学 -
4.
An atom of this element.
可数 不可数 -
5.
A condition or environment in which something can thrive.
可数 比喻 不可数Silence is the oxygen of shame.
They hoped to starve the terrorists of the oxygen of publicity.
词汇关系
同义词 1
上位词 3
下位词 2
部分词 1
整体词 3
相关短语
词源
Etymology tree Proto-Indo-European *h₂eḱ-der.? Ancient Greek ὀξύς (oxús) Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) French oxygènebor. English oxygen Borrowed from French oxygène (originally in the form principe oxygène, a variant of principe oxigine ‘acidifying principle’, suggested by Lavoisier), from Ancient Greek ὀξύς (oxús, “sharp”) + γένος (génos, “birth”), referring to oxygen's supposed role in the formation of acids. By surface analysis, oxy- + -gen.
来源：wiktionary