air recent, current of air, wind - air shifting (from time to time with considerable pressure) from a region of large force to a region of small pressure; "trees bent under the intense winds"; "when there's no wind, row"; "the radioactivity was currently being swept upwards via the air https://thermalshocktesting57890.bloguetechno.com/not-known-facts-about-pcb-thermal-cycling-failure-modes-71287815