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1. Constituting a separate thing: Computers treat time as a series of discrete moments rather than a continuous flow. See Synonyms at distinct.
2. Consisting of unconnected distinct parts: society viewed as a discrete whole of individual agents.
3. Mathematics Defined for a finite or countable set of values; not continuous.
[Middle English, from Old French, from Latin discrētus, past participle of discernere, to separate; see discern.]