Definition of elastin noun from the Oxford Advanced Learner's Dictionary

 

elastin

 noun
noun
BrE BrE//ɪˈlæstɪn//
 
; NAmE NAmE//ɪˈlæstɪn//
 
[uncountable](biology)
 
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a natural substance that stretches easily, found in the skin, the heart and other body tissues Word Origin late 19th cent.: from elastic + -in.
See the Oxford Advanced American Dictionary entry: elastin