op·er·a·ble 
(ŏpər-ə-bəl, ŏprə-)
(ŏpər-ə-bəl, ŏprə-)adj.
1. Being such that use or operation is possible: an operable machine.
2. Possible to put into practice; practicable: an operable plan.
3. Treatable by surgical operation with a reasonable degree of safety and chance of success: an operable cancer.
op′er·a·bili·ty n.
oper·a·bly adv.