|a weak acid formed when carbon dioxide combines with water: obtained only in aqueous solutions, never in the pure state. Formula: H2CO3|
|a gadget; dingus; thingumbob.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|carbonic acid (kär-bŏn'ĭk) Pronunciation Key
A weak, unstable acid present in solutions of carbon dioxide in water. It gives carbonated beverages their sharp taste. Chemical formula: H2CO3.