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English definition of “elastic”

elastic

adjective uk   /ɪˈlæs.tɪk/ us  
describes material that is able to stretch and be returned to its original shape or size: A lot of sportswear is made of very elastic material. able or likely to be changed: The project has only just started so any plans are still very elastic. In this country, time is an elastic concept.

elastic

noun [U] uk   /ɪˈlæs.tɪk/ us  
a type of rubber that is able to stretch and be returned to its original shape or size: His trousers were held up with a piece of elastic.
(Definition of elastic from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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