1. removing nuclear weapons or nuclear capability from a country, region, or facility
Usage: present participle of denuclearise; British English spelling (American: denuclearizing); formal, political
2. eliminating or reducing the role of nuclear energy in a country's power generation
Usage: environmental/energy policy context

Examples

• The treaty focused on denuclearising the peninsula to reduce regional tensions.
• Several European nations are denuclearising their energy sectors in favor of renewables.
• The government announced plans for denuclearising military arsenals over the next decade.
• International inspectors are monitoring the denuclearising process in the region.
• Environmental groups support denuclearising the country's power infrastructure.
• The agreement includes provisions for denuclearising weapons stockpiles.