aeriodite Share definition Flag adjective Well educated or "in the know" but aloof with this knowledge. "He was astute and aeriodite" "He is an aeriodite - you know he knows, but never sure how much." aeriodite by Don McLenaghen September 1, 2007 0 0 Get merch Get the aeriodite mug. Buy Now — $32.95 See more merch