sub-iceadj.

1875 10th Ann. Rep. Amer. Dairymen's Assoc. 1874 104 The ever-ready adjunct, to which I allude, exists in the use of what I denominate the sub-ice, or super-cooled ventilation.

1959 Times 9 Jan. 11/6 Apart from the exposed mountains near the coast, sub-ice hill and dale occur.

1973 Nature 20 Apr. 539/3 New chapters in the history of the continent will be based on the results of continued palaeomagnetic studies, much deep-sea drilling and to a lesser extent sub-ice drilling.

2001 D. Darling Life Everywhere ix. 173 In the case of sub-ice oceans, it's thought unlikely that there would be a sufficient supply of organic chemicals or energy to support an advanced ecology.