CRYOPHORUS

Cry‐oph″o‐rus (krī̍‐ŏf″ō̍‐rŭs), n. [[NL., fr. Gr. κρύοσ icy cold, frost + φέρειν to bear.]] (Chem.) An instrument used to illustrate the freezing of water by its own evaporation. The ordinary form consists of two glass bulbs, connected by a tube of the same material, and containing only a quantity of water and its vapor, devoid of air. The water is in one of the bulbs, and freezes when the other is cooled below 32° Fahr.