Cry*oph"o*rus (kr?-?f"?-r?s), n. [NL., fr. Gr. icy cold, frost + to bear.] Chem.
An instrument used to illustrate the freezing of water by its own evaporation. The ordinary form consist 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.
© Webster 1913.