Meaning of ELASTIC in English

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

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.