iceotope Share definition Flag A "close cousin" version of a basic element that becomes very cold as soon as it is formed. I wonder if non-radioactive iceotopes could be used for cheaper refrigeration, since they would not require external energy to keep things frosty? iceotope by QuacksO April 9, 2020 0 0 Get merch Get the iceotope mug. Buy Now — $32.95 See more merch