1. the branch of physics and engineering that deals with the production and effects of very low temperatures, typically below −150°C (−238°F).
Usage: typically used as a mass noun (uncountable); scientific and technical field

Examples

• Cryogenics is essential for liquefying gases like nitrogen and helium.
• The laboratory specializes in cryogenics research and low-temperature material testing.
• Advances in cryogenics have made it possible to preserve biological samples for decades.
• Cryogenics plays a crucial role in the development of superconducting materials.
• Medical applications of cryogenics include the freezing of tissue samples for analysis.
• Space agencies rely on cryogenics to store rocket fuel at extremely low temperatures.