operable
adjective /ˈɒpərəbl/
  /ˈɑːpərəbl/
- that functions; that can be used- Less than half the rail network was operable.
 
- (of a medical condition) that can be treated by an operation- This type of cancer is usually operable.
 opposite inoperable
Word Originmid 17th cent.: from late Latin operabilis, from Latin operari ‘expend labour on’, from opus, oper- ‘work’.