From Longman Dictionary of Contemporary Englishliquefactionliq‧ue‧fac‧tion /ˌlɪkwəˈfækʃən/ noun [uncountable] technicalHPLIQUID the act of making something a liquid or of becoming a liquid
Examples from the Corpus
liquefaction• That in turn requires extraction and electrolysis of 450 tons of water and liquefaction of the resulting 50 tons of hydrogen.• The country's political isolation and lack of indigenous oil has made coal liquefaction a major technology.• This corresponds to the liquefaction of the gas at this temperature. 