interlocking

/ˌɪntərˈlɑkɪŋ/
adjective
  1. Fitting together closely so that parts are joined or cannot move separately.
    • She bought a set of interlocking storage boxes for the closet.
    • The interlocking gears in the clock keep perfect time.
    • The interlocking bricks make it easy to build a sturdy wall.
  2. Describing a system or process where parts depend on each other to function.
    • The interlocking schedules of the trains require careful planning.
    • The interlocking rules of the game make it challenging for new players.
    • Their interlocking responsibilities mean they must communicate often.
Synonyms
noun
  1. The act or state of parts fitting or locking together.
    • The interlocking of the two companies' systems improved efficiency.
    • The interlocking of the dancers' arms created a beautiful pattern.
    • The interlocking of the puzzle pieces took hours.