Main Entry: spo·rad·ic

Pronunciation: \spə-ˈrad-ik\

Function: adjective

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