[fu.gac.i.ty] n [fugacious] (ca. 1929): the vapor pressure of a vapor assumed to be an ideal gas obtained by correcting the determined vapor pressure and useful as a measure of the escaping tendency of a substance from a heterogeneous system
FUGACITY
Meaning of FUGACITY in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012