verb, -ized, -iz⋅ing.| 1. | Photography. to reverse (an image) partially, as from negative to positive, by exposure to light during development. |
| 2. | to adapt (a building) to the use of solar energy: We hope to solarize our house within five years. |
| 3. | to affect by sunlight. |
| 4. | Photography. (of material) to become injured by overexposure. |