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

 

interstice

 noun
noun
BrE BrE//ɪnˈtɜːstɪs//
 
; NAmE NAmE//ɪnˈtɜːrstɪs//
 
[usually plural](formal)
 
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a small crack or space in something Word Origin late Middle English: from Latin interstitium, from intersistere ‘stand between’, from inter- ‘between’ + sistere ‘to stand’.
See the Oxford Advanced American Dictionary entry: interstice