Elasticity

n. [Fr. élasticité, It. elasticità, Sp. elasticidad.]

1. The quality of being elastic; the inherent property in bodies by which they recover their former figure or dimensions, after the removal of external pressure or altering force; springiness; rebound; as, the elasticity of caoutchouc, or of the air.
2. Power of resistance to, or recovery from, depression or overwork.