1 文書を見つけるための辞書。

• ozone
• オゾン
• a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
• アルカリや冷水に溶ける無色の気体（O3）