oxygen 
ox‧y‧gen /ˈɒksɪdʒən $ ˈɑːk-/ BrE AmE noun [uncountable] [Date: 1700-1800; Language: French; Origin: oxygène, from Greek oxys 'sharp, acid' + French -gène 'forming'; because it was believed that oxygen forms part of all acids] 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
oxygenhu◎ | ['ɔksidʒən] | ※ | danh từ | | ■ | (hoá học) khí Oxy |
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