| Subject | English | Russian |
| tech. | relative viscosity | условная вязкость (Relative viscosity (a synonym of "viscosity ratio") is the ratio of the viscosity of a solution to the viscosity of the solvent used, wiki – ВУ Alexander Demidov) |
| O&G. tech. | relative viscosity | удельная вязкость |
| construct. | relative viscosity | относительная вяз кость |
| oil | relative viscosity | относительная вязкость |
| nautic. | relative viscosity | ВУ (MichaelBurov) |
| tech. | relative viscosity | условная вязкость (Relative viscosity (a synonym of "viscosity ratio") is the ratio of the viscosity of a solution to the viscosity of the solvent used, wiki , ВУ) |
| chem. | relative viscosity increment | удельная вязкость |
| tech. | relative viscosity-temperature number | относительное вязкостно-температурное число |
| Makarov. | viscosity relative to that of water at 0 grad. C | удельная вязкость |