air current; airflow; atmospheric current
Refers to the movement of air, whether natural (wind, drafts) or in scientific/technical contexts (aerodynamics, ventilation).
The airplane was caught in a strong air current.
The airflow in this room is poor, so the air tends to get stuffy.
The eagle soared high, riding the air current.
Near mountains, the air current tends to become turbulent.
The observatory measures the air currents high above.
downdraft; downward air current
jet stream