blue ice noun2 •Ice that is blue in colour, formed by compressed snow on a glacier having its air bubbles squeezed out.Antarctica is the best place in the world to find meteorites, and the search for Antarctic meteorites begins with the search for blue ice. — 1997 •Human waste that has leaked from an aircraft, frozen at high altitude, and fallen to earth.A chunk of blue ice, apparently from the holding tank of an aircraft toilet, ripped a hole in an elderly couple's roof and destroyed a bed. — 2006