| oxide emission | 1.25 | Nitrogen oxide Forty percent of nitrogen oxide emissions in Britain come from vehicles. | ||
| oxide fuel | 0.33 | The debate has spread across Europe to the industry of selling mixed oxide fuels. | ||
| oxide gas | 0.33 | The best sterilization methods are steam, ethylene oxide gas, dry heat and chemical germicides. | ||
| oxide semiconductor | 0.26 | The machines use so-called complimentary metal oxide semiconductors to reduce their cost. |