carbonic acid

Definitions

1. A weak unstable acid, H₂CO₃, known only in solution, and as carbonate salts; it is present in carbonated drinks, and sparkling wine, but decomposes to form carbon dioxide and water.
   uncountable
2. Carbon dioxide.
   obsolete, uncountable

Equivalents

Examples

“Had she lived now, she would have⟳ talked of the last⟳ delightful lecture⟳ on gas, or the charming new treatise on carbonic acid; she would have⟳ studied German, and delighted in the society of "talented people."”

“[I]t sank down through the air and poured over the ground in a manner rather liquid than gaseous, abandoning the hills, and streaming into the valleys and ditches and water-courses even as I have⟳ heard the carbonic acid gas that pours from volcanic clefts is wont to do.”

CEFR level