弾だん性せいゴムだんせいゴムMeanings1nounelastic rubber; gum elasticTechnical or descriptive term for rubber with high elasticity; less common in everyday conversation than ゴム alone.この素そ材ざいは弾だん性せいゴムでできているので、よく伸のびます。This material is made of elastic rubber, so it stretches well.
