aer·on·o·my \a(ə)ˈränəmē, e(ə)ˈ-, ˌāəˈ-\noun (-es-s-s) Etymology:aer- + -nomy : a science that deals with the physics and chemistry of the upper atmosphere of planets • aer·on·o·mer\-mə(r)\noun • aer·o·nom·ic\ˌa(ə)rəˈnämik, ˌe(ə)r-, ˌāər-\alsoaer·o·nom·i·cal\-mə̇kəl\adjective • aer·on·o·mist\a(ə)ˈränəmə̇st, e(ə)ˈ-, ˌāəˈ-\noun