adjectif satellite
1 : (used of a device) designed so that a property (as e.g. light) can be varied; "a variable capacitor"; "variable filters in front of the mercury xenon lights"
2 : marked by diversity or difference; "the varying angles of roof slope"; "nature is infinitely variable"
1 : liable to or capable of change
1 : a quantity that can assume any of a set of values