Definition of "aerials"

The small world of aerials is trying to provide comfort. Athletes from Switzerland, including the former Olympic freestyle skier Andreas Isoz, have been raising funds and planned to go this weekend to Mukachevo, or as close as they could get near the Ukrainian border, to hand off supplies.

2022 March 4, John Branch, “He Won an Olympic Silver for Ukraine. Now He’s Hiding in a Kyiv Garage.”, in The New York Times‎