S: (n) mechanism (device consisting of a piece of machinery; has moving parts that perform some function)
S: (n) device (an instrumentality invented for a particular purpose) "the device is small enough to wear on your wrist"; "a device intended to conserve water"
S: (v) treat, care for (provide treatment for) "The doctor treated my broken leg"; "The nurses cared for the bomb victims"; "The patient must be treated right away or she will die"; "Treat the infection with antibiotics"