Definitions
from The American Heritage® Dictionary of the English Language, 4th Edition
 n. An expression used to distinguish or separate other expressions in a quantity or equation.
from Wiktionary, Creative Commons Attribution/ShareAlike License
 n. An expression that gives information about the roots of a polynomial; for example, the expression D = b2  4ac determines whether the roots of the quadratic equation ax2 + bx + c = 0 are real and distinct (D > 0), real and equal (D = 0) or complex (D < 0).
 adj. Serving to discriminate.
from the GNU version of the Collaborative International Dictionary of English
 n. The eliminant of the n partial differentials of any homogenous function of n variables. See eliminant.
from The Century Dictionary and Cyclopedia
 n. In mathematics, the eliminant of the n differential coefficients of a homogeneous function of n variables.
 Implying equal roots or a node.
 n. Discriminating.
Etymologies
Sorry, no etymologies found.
Examples

If the discriminant is a positive square integer, there will be two rational factors.

If the discriminant is a positive nonsquare integer, there will be two irrational factors.

If the discriminant is a negative number, there will be two factors in the form of a complex conjugate.

Fred makes a valid point that I was going to bring up, the ANC, whether you parse bullshit by separating “indiscriminate” from discriminant or ANC policy from alledged “rouge operators” the crimes committed are no less horrifying.

Well, it seems the university is being discriminant in its actions.
The Volokh Conspiracy » Age Discrmination Against Child Prodigy?

Alternatively, you could use discriminant analysis: find the hyperplane in role playing, sexual orientation, minority group space that best separates those with mental health problems from those without.

His interest in computer modeling goes back forty years to his multiplediscriminant analysis of Egyptian crania, carried out on an IBM 7090 computer at Harvard, published in the Papers of the Peabody Museum in 1966.

The COIN theorists would like the Afghan government to field a force of somewhere in the neighborhood of 400,000600,000 disciplined troops, capable of using discriminant force and avoiding civilian casualties.
Derrick Crowe: U.S. Policymakers Let the Vietnam/Afghanistan Comparison Out of the Bag

Army's GI bill advertising awareness survey: A discriminant analysis (USAREC Research memorandum) by Paula E Gilkey

The software is the discriminant and helps the user determine what it is for secondary inspection.
Get ready for the government to look at you with Xray eyes.
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