carbonic-acid gas


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carbonic-acid gas

n
(Elements & Compounds) another name for carbon dioxide

car′bon diox′ide


n.
a colorless, odorless, incombustible gas, CO2, present in the atmosphere and formed during respiration: used as dry ice and in carbonated beverages and fire extinguishers.
[1870–75]
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It was heavy, this vapour, heavier than the densest smoke, so that, after the first tumultuous uprush and outflow of its impact, it 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 watercourses even as I have heard the carbonic-acid gas that pours from volcanic clefts is wont to do.
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