Discrete (adjective): Separate and distinct, with clearly individuated parts.
Usage: Easily confused with discreet "prudent, careful, unobtrusive". Watch the spelling variation.
Suggested Usage: This is the perfect word to use instead of "separate" or "distinct" when you wish to emphasize the individuality of the pieces separated: "The problem may be reduced to three discrete issues" or "The company comprises three discrete divisions", implying some autonomy in each division.
Source: Your Dictionary