The property of a material to return to its original shape or length after deformation by an external force; elasticity.
ゴムは大きな弾性を持っているので伸ばしても戻る。
Rubber has high elasticity, so it returns after being stretched.
弾性係数を測定して材料の性質を調べた。
They measured the elastic modulus to investigate the material's properties.
この靴底は弾性が高く、歩くときの衝撃を吸収する。
This shoe sole has high elasticity and absorbs shock when walking.