aer-
1.
variant of
aero-
before a vowel:
aerate.
British Dictionary definitions for
aer-
aer-
combining form
1.
a variant of
aero-
aero-
combining form
1.
denoting air, atmosphere, or gas:
aerodynamics
2.
denoting aircraft:
aeronautics
Word Origin
ultimately from Greek
aēr
air