| OI | (H2SO4) a highly corrosive acid made from sulfur dioxide |
|---|---|
| OI | oil or flavoring obtained from the creeping wintergreen or teaberry plant |
| OI | paint in which a drying oil is the vehicle |
| OI | a painter who uses oil paints |
| OI | the act of painting with oil paints |
| OI | a picture painted with oil paints |
| OI | pinnate-leaved palms of the genus Elaeis having dense clusters of crowded flowers and bright red fruit and yielding high quality palm oils |
| OI | a pipeline used to transport oil |
| OI | pressure that keeps oil on the moving parts of an internal-combustion engine |
| OI | the act of drilling a hole in the earth in the hope of producing petroleum |
| OI | a pump that keeps a supply of oil on moving parts |
| OI | a refinery for petroleum |