I. e ‧ las ‧ tic 1 /ɪˈlæstɪk/ BrE AmE noun [uncountable]
a type of rubber material that can stretch and then return to its usual length or size:
a piece of elastic
II. elastic 2 BrE AmE adjective
[ Date: 1600-1700 ; Language: Modern Latin ; Origin: elasticus , from Late Greek elastos 'able to change shape' ]
1 . made of elastic:
an elastic cord
2 . a material that is elastic can stretch and then go back to its usual length or size:
the horny elastic pad in a horse’s hoof
3 . a system or plan that is elastic can change or be changed easily:
Demand for this type of holiday will probably be fairly elastic.
4 . American English if a piece of clothing is elastic, it is made with material that can stretch:
children’s pants with an elastic waist