There are words that are derived from "aer(o)", but "aer(o)" is normally used as a prefix as in aerodynamics.
Another word with the suffix "the r m(o)" would be isotherm.
"aer(o)" relates to air.
Scientific words that are derived from "aer(o)" are aerify (to turn into a vapor) and aerate (to expose to air or a gas).
There are more "aer(o)" words here:
"the r m(o)" relates to temperature.
An isotherm is a line drawn on a weather chart or map through regions sharing equal temperatures at the time.
There are more meanings of isotherm described here: