Wiktionary英语词典

收录 1,329,381 个英语单词,来自Wiktionary的英文释义、IPA发音、词源、词形变化和词汇关系数据

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O开头单词 (共36,133个)
oxygen pulse
Oxygen uptake per heartbeat at rest.
Oxygen Revolution
Synonym of Great Oxygenation Event.
oxygen revolutions
plural of oxygen revolution
oxygen saturation
The condition of being saturated with oxygen.
oxygen stone
oxylith
oxygen tank
A metal cylinder holding compressed oxygen.
oxygen tanks
plural of oxygen tank
oxygen tent
A canopy for the head and shoulders, or a similar enclosure for the whole body, within which air hav...
oxygen tents
plural of oxygen tent
oxygen therapy
Therapeutic administration of oxygen.
oxygen thief
A useless person.
oxygen thieves
plural of oxygen thief
oxygen toxicity
The harmful effects of breathing dioxygen at increased partial pressures.
oxygen waster
Synonym of waste of oxygen.
oxygen wasters
plural of oxygen waster
oxygen-16
The major stable isotope of oxygen, 168O, having eight protons and eight neutrons; it amounts to ove...
oxygen-17
A rare stable isotope of oxygen, 178O, having eight protons and nine neutrons; it amounts to 0.037% ...
oxygen-18
A stable isotope of oxygen, 188O, with 8 protons and 10 neutrons; it amounts to about 0.2% of the el...
oxygen-poor
Containing low levels of oxygen.
oxygenase
An enzyme which catalyses biochemical reactions with oxygen.