Also found in: Medical.


A substance, such as glycerol, used to protect cells or tissues from damage during freezing.

cry′o·pro·tec′tant adj.
cry′o·pro·tec′tive adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) protecting against damage caused by cryopreservation
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Before cryopreservation can be realized, evidence from numerous studies on fish and other species of bivalve mollusc has highlighted the importance of identifying the type and concentration of appropriate sperm cryoprotective agents (CPAs) for the species of interest, as many CPAs show varying degrees of toxicity to sperm either in isolation, or when applied in different combinations (Chao et al.
It maintains integrity of the skin under freezing conditions, showing nigh cryoprotective properties.
Additionally, the effect of fall harvest management on cryoprotective sugars including sucrose and RFO has not been investigated.
An equal amount of cryoprotective additive solution (28% glycerol, 3% mannitol, 0.65% NaCl) was added to packed erythrocytes and thoroughly mixed.
After addition of the cryoprotective solution, the unit may be frozen in the liquid or vapor phase of nitrogen, or an ultra-cold mechanical freezer.
They also add cryoprotective agents such as glycerol, which are thought to act as antifreeze solutions and which may protect cell parts by stabilizing membranes and proteins.
Briefly, E14.5 embryos were removed and their brains were dissected and fixed in 4% PFA overnight and then transferred to a cryoprotective solution (30% sucrose in PBS).
Effects of bovine sperm cryopreservation using different freezing techniques and cryoprotective agents on plasma, acrosomal and mitochondrial membranes.
Effect of cryoprotective additives and cryopreservation protocol on sperm membrane lipid peroxidation and recovery of motile human sperm.