AER- Meaning of AER- in English [aer-] or aero- comb form [ME aero-, fr. MF, fr. L, fr. Gk aer-, aero-, fr. aer] 1 a: air: atmosphere "aerate" "aerobiology" b: air and "aerospace" 2: gas "aerosol" 3: aviation "aerodrome" Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012