| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Existent gum | Chemical Industry | The evaporation residue of aviation gasoline aircraft turbine fuel or the heptane-insoluble portion of the evaporation residue of motor gasoline. Source: European Union. (references) | |
| Gasoline existent gum | Chemical Industry | Gum in solution in gasoline and remaining as a residue when the gasoline is evaporated. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||