Meaning of alkaline air | Babel Free
Definitions
Ammonia.
historical, uncountable
Examples
“Private individuals in England, France, and Italy knew of Priestley's discovery before he made it public with a paper on alkaline air read to the Royal Society on 3 March 1774.”
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.