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sporadic

adj spo·rad·ic \spə-ˈrad-ik\

Medical Definition of SPORADIC

1

: occurring occasionally, singly, or in scattered instances <sporadic diseases>—compare endemic, epidemic 1

2

: arising or occurring randomly with no known cause <sporadic Creutzfeldt-Jakob disease>

—spo·rad·i·cal·ly \-i-k(ə-)lē\ adverb

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