| v. t. | 1. | |
| 1. | To throw rays of light upon; to illuminate; to brighten; to adorn with luster. | |
| 2. | To enlighten intellectually; to illuminate; | |
| 3. | To animate by heat or light. | |
| 4. | To radiate, shed, or diffuse. | |
| 5. | To expose to radiation of any kind, especially ionizing radiation; | |
| v. i. | 1. | To emit rays; to shine. |
| a. | 1. | Illuminated; irradiated. |
| Verb | 1. | irradiate - give spiritual insight to; in religion Synonyms: enlighten |
| 2. | irradiate - cast rays of light upon | |
| 3. | irradiate - expose to radiation; "irradiate food" Synonyms: ray |