Liquefaction
Pronunciation : Liq`ue*fac"tion
Part of Speech : n.
Etymology : [L. liquefactio: cf. F. liqu?faction. See Liquefy.]
Definition : 1. The act or operation of making or becoming liquid; especially, the conversion of a solid into a liquid by the sole agency of heat.
2. The state of being liquid.
3. (Chem. Physics)
Defn: The act, process, or method, of reducing a gas or vapor to a liquid by cold or pressure; as, the liquefaction of oxygen or hydrogen.
Source : Webster's Unabridged Dictionary, 1913