Cryosphere Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the frozen water part of the earth's system. Example Sentence There is a wide overlap of the cryosphere and hydrosphere. More Example Sentences Scientists study the cryosphere for climate change. Synonyms frozen water; ice; glacier Antonyms tropical waters Hear It! Say It! Write It! Cryosphere Switch to cursive Start Share with your friends: