definition of
[functioning]

[1] #1 functioning a. performing or able to perform its regular function; "a functioning flashlight". wn

[2] #2 functioning n. [operation, performance] process or manner of functioning or operating; "the power of its engine determines its operation"; "the plane's operation in high winds"; "they compared the cooking performance of each oven"; "the jet's performance conformed to high standards". wn