D defs.my
Entry 2 senses Webster, 1913

Fugacity

· Fu·gac·i·ty · IPA /fjuːˈɡæsɪti/
01 a. The quality of being fugacious; fugaclousness; volatility; as, fugacity of spirits.
  1. 1.
    The quality of being fugacious; fugaclousness; volatility; as, fugacity of spirits.
  2. 2.
    Uncertainty; instability.