refrigerant cryogen

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cryogen — [krī′ō jən, krī′əjən] n. [ CRYO + GEN] a refrigerant … English World dictionary
cryogen — noun Date: 1875 a substance for obtaining low temperatures ; refrigerant called also cryogenic … New Collegiate Dictionary
cryogen — noun A cryogenic liquid (that boils below about 160°C) used as a refrigerant … Wiktionary
Cryostat — NASA s WISE infrared instrument is kept cold by a cryostat. The cryostat can be seen at the top of the spacecraft. A cryostat (from cryo meaning cold and stat meaning stationary) is a device used to maintain cold cryogenic temperatures. Low… … Wikipedia
liquid air — noun air in a liquid state (Freq. 3) • Hypernyms: ↑air, ↑cryogen * * * noun : air in the liquid state but usually richer in oxygen than gaseous air that is obtained as a faintly bluish transparent mobile intensely cold liquid by compressing… … Useful english dictionary
Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P … Wikipedia
Liquid helium — Helium exists in liquid form only at very low temperatures. The boiling point and critical point depend on the isotope of the helium; see the table below for values. The density of liquid helium at its boiling point and 1 atm is approximately… … Wikipedia

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