Chem. [f. as prec. + HYDRATE.] A solid hydrate formed by the combination of a salt or other crystalloid with water (ice) at a temperature below freezing-point.
1874. F. Guthrie, in Proc. Physical Soc., I. 74. At 0° C. the ice and the water solidify together, producing the compound body or cryohydrate called ice, which is thus a cryohydrate of water. Ibid. (1875), I. 76. By Cryohydrate I mean the body resulting from the union of water with another body, and which hydrate can only exist in the solid form below 0° C.
