1. the process of dissolving carbon dioxide gas into a liquid, or the state of being filled with carbon dioxide bubbles
2. carbon dioxide gas dissolved in a liquid, especially in beverages

Examples

• The carbonation in soda makes it fizzy and refreshing.
• This sparkling water has more carbonation than that one.
• The carbonation process adds bubbles to the beverage.
• Over time, carbonation can escape from an open bottle.
• Many people prefer drinks with high carbonation.
• The carbonation gives the drink its characteristic taste and texture.