Definition of contractile adjective from the Oxford Advanced American Dictionary

 

contractile

 adjective
adjective
NAmE//kənˈtræktl//
 
, NAmE//kənˈtræktaɪl//
 
(biology)
 
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(of living tissue, organs, etc.) able to contract or, of an opening or a tube, become narrower
See the Oxford Advanced Learner's Dictionary entry: contractile