CRYOPHORUS
Etymology
Noun
cryophorus (plural cryophoruses)
(chemistry) 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 and containing only a quantity of water and water vapour, devoid of air. The water is in one of the bulbs, and freezes when the other is cooled below zero.
Source: Wiktionary
Cry*oph"o*rus (kr-f"-rs), n. Etym: [NL., fr. Gr. (Chem.)
Definition: 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 32Âş Fahr.
Source: Webster’s Unabridged Dictionary 1913 Edition