Cryonicses is the plural form of the word cryonics, which refers to the practice of freezing a human body or brain in the hopes of reviving them in the future. There are several synonyms for cryonics, including cryopreservation, cryonic suspension, and cryostasis. Cryopreservation is the general term for the process of preserving biological material by freezing it at extremely low temperatures. Cryonic suspension is the specific term for the freezing and storage of a person's body or brain. Cryostasis refers to a state of suspended animation achieved through cryogenic techniques. All of these terms refer to the idea of freezing and preserving biological material in the hopes of bringing it back to life in the future.