Fugacity

[fju:'gæsiti]

(noun.) the lack of enduring qualities (used chiefly of plant parts).

(noun.) the tendency of a gas to expand or escape.

Editor: Vlad--From WordNet

(a.) The quality of being fugacious; fugaclousness; volatility; as, fugacity of spirits.

(a.) Uncertainty; instability.

Inputed by Conrad