elastic

adjective

• 1(of an object or material) able to resume its normal shape spontaneously after being stretched or compressed: a tourniquet of rubber tubing or other elastic material is placed around the upper arm

• 2able to encompass much variety and change; flexible and adaptable:the definition of nationality is elastic in this cosmopolitan country

• 3 Economics (of demand or supply) sensitive to changes in price or income: the labour supply is very elastic

• 4 Physics (of a collision) involving no decrease of kinetic energy.

noun

• cord, tape, or fabric, woven with strips of rubber, which returns to its original length or shape after being stretched: a polythene bag tied with elastic