さん
Meanings
Noun
1. 原子番号 8、元素記号 O の非金属元素。単体は酸素(O2)またはオゾン(O3)として存在する。地球の大気中だけでなく、宇宙のどこにでも広く存在している。単体の長時間吸引は生体にとって有害である。
2. 2つの酸素原子で構成された分子。化学式はO2。常温常圧で無色無臭の気体。
Kanji used
acid
elementary
Pitch accent
んそ
Top 9200
Composed of
① 水に溶けて水素イオンを生ずるもの(一般的定義)
① (数論)1とそれ自身のほかに約数を持たないこと。また1のほかに公約数を持たないこと。
Used in vocabulary (34 in total)
Examples (16 in total)
There's no oxygen on the moon.
You can't live without oxygen.
Oxygen is needed for combustion.
Iron and oxygen are elements.
You cannot burn anything without oxygen.
We can't live without oxygen.
Oxygen from the air dissolves in water.
Trees give off oxygen and absorb carbon dioxide.
Tropical rainforests produce oxygen and consume carbon dioxide.
Oxygen is taken into our lungs when we breathe.
This substance is mostly composed of hydrogen and oxygen.
The air we breathe consists of oxygen and nitrogen.
Without oxygen, all animals would have disappeared long ago.
He died from lack of oxygen.
We yawn when we are short of oxygen.
A water molecule has two hydrogen atoms and one oxygen atom.