composed primarily of permafrost solid astronomical body part water ice snow cryoform Place holder class. Also the axiom should be changed to something along the lines of 'primairly composed of’ some ‘environmental material’ and ‘has quality’ frozen once PATO:frozen is imported. envoPolar http://orcid.org/0000-0002-3410-4655 A solid astronomical body part which is primarily composed of a continuous mass of snow and/or ice.