/ɛr/ or /er/ (EH-er or ER)

Definitions

1. noun

A suffix used in French to indicate air or gas, especially in the names of gases (e.g., aero-, aer-).

“The scientist studied the aer properties of the newly discovered gas.”

2. prefix

Relating to the air or atmosphere, especially in the context of aeronautics.

“The aer engineer designed a new wing for the aircraft.”