Noun
cryoprotectant (plural cryoprotectants)
(biology) Any substance (typically a polyhydric alcohol) that prevents cell damage on freezing
Cryopreservation may be accomplished by freezing, freezing with cryoprotectant to reduce ice damage, or by vitrification to avoid ice damage. Source: Internet
Revival would require repairing damage from lack of oxygen, cryoprotectant toxicity, thermal stress (fracturing), freezing in tissues that do not successfully vitrify, and reversing the effects that caused death. Source: Internet