1. treating wood with a chemical solution (typically mercuric chloride) to preserve it and prevent decay
Usage: British spelling; American equivalent is 'kyanizing'; technical/industrial term; present participle of 'kyanise'

Examples

• The railway company invested in kyanising the wooden sleepers to extend their lifespan.
• Kyanising was a common method for protecting timber in the 19th and early 20th centuries.
• The process of kyanising involves immersing the wood in a chemical bath.
• Modern alternatives have largely replaced kyanising due to health and environmental concerns.