1. having the properties of an alkali; having a pH greater than 7
Usage: chemistry
2. containing alkali; relating to or containing substances that neutralize acids

Examples

• The soil in this area is highly alkaline.
• Alkaline batteries last longer than regular ones.
• The water tested alkaline with a pH of 8.5.
• Many cleaning products are alkaline in nature.
• The alkaline solution neutralized the acid spill.
• Baking soda creates an alkaline environment when dissolved in water.