discriminant adjective & noun. 
[dɪ'skrɪmɪnǝnt] M19.[Latin discriminant- pres. ppl stem of discriminare DISCRIMINATE verb: see -ANT1.]A. adjective.
1.  Discriminating; showing discrimination or discernment. 
M19.2.  Statistics. Designating a function of several variates that is used to give the best classification of items for which values of the variates are available. 
M20.b. noun.
1.  Math. A function derived from another function and providing information about its behaviour. 
M19.2.  gen. That which enables discrimination; a distinguishing feature, 
spec. a discriminant function. 
E20.  [TahlilGaran] English Dictionary ▲