Step 1: Understanding the Concept:
The word "Sporadic" is an adjective used to describe the frequency or pattern of an occurrence.
Step 2: Detailed Explanation:
"Sporadic" refers to something that happens only occasionally, or at scattered and irregular intervals. It lacks a steady or constant pattern.
Analyzing the options:
(A) Continuous: This means happening without pause, which is the opposite of sporadic.
(B) Regular: This means happening at fixed, predictable times.
(C) Occurring at irregular intervals: This is the precise definition of sporadic.
(D) Permanent: This means lasting forever, which is unrelated to the frequency of an event.
Step 3: Final Answer:
The correct meaning of "Sporadic" is occurring at irregular intervals.