operating

CIDE DICTIONARY

operating, adj. 

•  pr. p. of operate; as, the operating conditions of the oxidation pond.  [WordNet 1.5]
•  having an effect or influence.  [WordNet 1.5]

THESAURUS

operating

acting, active, at work, behavioral, functional, functioning, going, going on, in exercise, in force, in hand, in operation, in play, in practice, in process, in the works, inaction, on foot, on the fire, ongoing, operational, performing, practicing, running, serving, working