WordNet sense 1 (the holy city of Shiite Muslims; located in northeastern Iran):

Mashhad

WordNet sense 2 (resembling or forming a network):

reticular, reticulate

WordNet sense 3 ((used of toothed parts or gears) interlocked and interacting):

engaged, intermeshed

WordNet sense 4 (equipped with or connected by gears or having gears engaged):

geared