Note: Do not rely on this information. It is very old.
Lemonade
Lemonade, a beverage made by digestion of lemons with water and addition of sugar. The commercial lemonade, sold in bottles or siphons, is an. aerated water - i.e. water, charged under pressure with carbonic acid - sweetened with sugar, and flavoured either by the lemon juice, or by a little citric acid.