air current, present of air, wind - air shifting (at times with appreciable pressure) from a place of large strain to a place of reduced pressure; "trees bent underneath the intense winds"; "when there isn't a wind, row"; "the radioactivity was staying swept upwards because of the air recent https://thermal-cycling-chambers57901.mpeblog.com/62720109/facts-about-thermal-shock-testing-for-electronics-revealed