Cryogenic (adjective)

1. Relating to the production or use of very low temperatures, typically below -150°C.
2. Relating to the study of the effects of low temperatures on materials and living organisms.
3. Relating to the preservation of biological material at very low temperatures.

Origin:

Mid 19th century: from greek kruos "frost" + -genic.

Examples:

1. Cryogenic temperatures are used to preserve biological samples.
2. Cryogenic freezing is used to preserve organs and cells.
3. The cryogenic experiment showed the effects of low temperatures on the materials.
4. The cryogenic chamber was used to simulate conditions on Mars.
5. The cryogenic technology was used to preserve the sperm and eggs of endangered species.