| English | eng-000 |
| specific refraction | |
| 普通话 | cmn-000 | 折射度 |
| 普通话 | cmn-000 | 折射系数 |
| 普通话 | cmn-000 | 比折射度 |
| English | eng-000 | coefficient of refraction |
| English | eng-000 | refraction coefficient |
| English | eng-000 | refractivity |
| English | eng-000 | refrangibility |
| English | eng-000 | refringence |
| English | eng-000 | refringency |
| русский | rus-000 | удельная рефракция |