单词	cryoprotectant
释义	cryoprotectant /ˌkrʌɪəʊprəˈtɛkt(ə)nt / noun Physiology A substance that prevents the freezing of tissues, or prevents damage to cells during freezing.Chemicals called cryoprotectants reduce ice formation but have toxic effects that introduce their own problems.... It is currently believed that effective cryoprotectants for proteins or enzymes in solution are excluded from the immediate vicinity of these biological molecules. Diplolepis overwinter in a prepupal stage; they are freezing-intolerant and develop cryoprotectants that lower their supercooling points.
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