1. having been treated with or converted to an alkali; made alkaline
Usage: chiefly British spelling

1. past tense and past participle of alkalise; to make alkaline or convert into an alkali
Usage: chiefly British spelling; American English typically uses 'alkalized'

Examples

• The soil was alkalised to improve its pH balance for growing certain crops.
• The water had been alkalised before being used in the industrial process.
• An alkalised solution is often preferred in laboratory experiments.
• The chemist alkalised the compound by adding a base.
• The alkalised mixture showed different properties than the original substance.