Preservation of cells, tissues, organs, or embryos by freezing. In histological preparations, cryopreservation or cryofixation is used to maintain the existing form, structure, and chemical composition of all the constituent elements of the specimens.

Synonyms: Suspensions, Cryonic, Cryofixation, Cryopreservation, Cryonic Suspensions, Suspension, Cryonic, Cryonic Suspension