Meaning of “elastic” - Learner’s Dictionary

elastic

adjective us uk /ɪˈlæstɪk/

Something that is elastic can stretch and return to its original size:

Your skin is more elastic when you are young.
elasticity noun [ U ] us uk /ˌɪlæsˈtɪsəti/

the quality of being elastic

(Definition of “elastic adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)