the science dealing with the physics and chemistry of the upper atmosphere
Origin of aeronomyaero- + -nomy
The study of the upper atmosphere, especially of regions of ionized gas.
- aer′o·nom′ic, aer′o·nom′i·cal
- 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.
See aero- (“air”) and -nomy (“a system of rules or laws about a particular field”).