noun
Refers to the physical property of a material to return to its original shape after deformation. Common in scientific and engineering contexts.
ゴムは弾性が高い素材です。
Rubber is a material with high elasticity.
この金属は温度が上がると弾性が低下する。
This metal loses elasticity when the temperature rises.
Compound of 弾 (だん, 'spring back') and 性 (せい, 'property'). The exact historical derivation is uncertain, but the word is a modern technical coinage based on Chinese-derived morphemes.