fugacity

from WordNet (r) 3.0 (2006)

fugacity
    n 1: the tendency of a gas to expand or escape
    2: the lack of enduring qualities (used chiefly of plant parts)
       [syn: {fugacity}, {fugaciousness}]

from The Collaborative International Dictionary of English v.0.48

Fugacity \Fu*gac"i*ty\, a. [L fugacitas: cf. F. fugacit['e].]
   1. The quality of being fugacious; fugaclousness; volatility;
      as, fugacity of spirits. --Boyle.
      [1913 Webster]

   2. Uncertainty; instability. --Johnson.
      [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "fugacity":
      caducity, changeableness, corruptibility, death, ephemerality,
      ephemeralness, evanescence, finitude, fleetingness, impermanence,
      impermanency, instability, momentariness, mortality, mutability,
      perishability, transience, transiency, transientness,
      transitoriness, volatility

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