air present-day, present-day of air, wind - air transferring (in some cases with appreciable pressure) from a place of higher tension to a location of lower tension; "trees bent beneath the fierce winds"; "when there isn't any wind, row"; "the radioactivity was becoming swept upwards via the air latest https://thermalshocktesting23455.total-blog.com/rapid-temperature-change-testing-fundamentals-explained-61436551