| v. t. | 1. | To bend sharply and abruptly back; to break off. |
| 2. | To break the natural course of, as rays of light orr heat, when passing from one transparent medium to another of different density; to cause to deviate from a direct course by an action distinct from reflection; |
| Verb | 1. | refract - subject to refraction; "refract a light beam" |
| 2. | refract - determine the refracting power of (a lens) |