cryopreservation Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the process of freezing biological material to keep it from decaying. Example Sentence The scientist used cryopreservation to store the biological samples. Synonyms freezing; cold storage; deep freeze Antonyms thawing; heating Hear It! Say It! Write It! cryopreservation Switch to cursive Start Share with your friends: