adjective / noun
elastic
ih-LAS-tik/ɪlˈæstɪk/
Able to stretch and return to its previous shape.
The elastic band stretches between the hands and returns to its original shape.

Etymology
The Greek idea of flexibility became a scientific term for gases recovering their volume after compression. It then extended to solids returning to their original shape.
In context
Elastin is stretchy. It's elastic. It can stretch and return to its original shape.
More examples
- The elastic in my waistband has lost its stretch.
- She keeps spare hair elastics in her bag.
- Kneading makes the dough smooth and elastic.
Forms
elastic · elastics
elasticity noun — Ability to regain shape after stretching.
elastically adverb — With the ability to regain shape.
Similar words
- stretchy
- Emphasizes easy stretching rather than returning to the original shape.
- resilient
- Emphasizes recovery after bending or compression, not necessarily stretching.