cryogen cryoconite • cryogenic · · · Info · Definitions · Characters · · cryogen · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a liquid that boils at below -160 C and is used as a refrigerant. · · Noun Definition 1 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 y latin small letter y U+0079