interdigitation

/ˌɪntərˌdɪdʒɪˈteɪʃən/
noun
  1. The act or state of interlocking or fitting together like the fingers of two clasped hands.
    • The interdigitation of the puzzle pieces made the picture complete.
    • Geologists studied the interdigitation of rock layers along the cliff face.
    • The interdigitation of the gears ensured smooth operation of the machine.
  2. A close, complex interconnection or interweaving of parts or elements.
    • The interdigitation of different cultures in the city created a vibrant community.
    • The interdigitation of their schedules made it hard to find a meeting time.
    • The interdigitation of the two companies' supply chains improved efficiency.