Aeronomy Definition

The study of the upper atmosphere, especially of regions of ionized gas.
American Heritage
The science dealing with the physics and chemistry of the upper atmosphere.
Webster's New World
A branch of science that deals with the atmosphere of the Earth and the other planets with reference to their chemical composition, physical properties, relative motion, and responses to radiation from space.

Origin of Aeronomy

  • See aero- (“air”) and -nomy (“a system of rules or laws about a particular field”).

    From Wiktionary

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