1. to expose to the action of the sun’s rays
Usage: British spelling
2. to undergo a change in photographic film or paper due to overexposure to light, causing a reversal of tones
Usage: photography; British spelling

Examples

• The farmer decided to solarise the soil to kill harmful bacteria.
• She left the herbs outside to solarise in the afternoon sun.
• The photographer accidentally solarised the film by leaving it in bright light.
• The old photograph had solarised over time, creating strange reversed tones.
• They used plastic sheeting to solarise the garden bed before planting.
• The darkroom technician warned against solarising the prints during development.