fixed air
Carbon dioxide; carbonic acidCarbon dioxide; carbonic acid.
Meaning
1 senses(historical, uncountable)Carbon dioxide; carbonic acid.
Origin
Coined by Scottish chemist Joseph Black in 1756 because it can be absorbed, or fixed, by sCoined by Scottish chemist Joseph Black in 1756 because it can be absorbed, or fixed, by strong bases.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable