in ‧ ter ‧ lock /ˌɪntəˈlɒk $ ˌɪntərˈlɑːk/ BrE AmE verb [intransitive and transitive]
if two or more things interlock, or if they are interlocked, they fit firmly together:
a puzzle with 500 interlocking pieces
in ‧ ter ‧ lock /ˌɪntəˈlɒk $ ˌɪntərˈlɑːk/ BrE AmE verb [intransitive and transitive]
if two or more things interlock, or if they are interlocked, they fit firmly together:
a puzzle with 500 interlocking pieces
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012