Elasticity (noun)
The property by virtue of which a material deformed under load can regain its original dimensions when unloaded
Elasticity (noun)
The sensitivity of changes in a quantity with respect to changes in another quantity.
“If the sales of an item drop by 5% when the price increases by 10%, its price elasticity is -0.5.”
Elasticity (noun)
The quality of being elastic.
Elasticity (noun)
Adaptability.
“Her elasticity allowed her to recover quickly.”
Plasticity (noun)
The quality or state of being plastic.
Plasticity (noun)
the property of a solid body whereby it undergoes a permanent change in shape or size when subjected to a stress exceeding a particular value (the yield value)
Wiktionary