The branch of science studying the atmosphere's physical and chemical properties, especially the upper atmosphere.
From aero- (air) + -nomics (study of laws or principles). While aeronomy is the standard term, aeronomics sometimes appears as an alternative plural or field designation.
Aeronomics shares a suffix with economics and astronomy—it shows how scientists use '-nomics' to mean 'the study of the laws governing something,' creating a sense that the atmosphere follows rules we can discover.
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