Twinkling is one instance of the universal scintillation phenomenon

Evidence

These fluctuations are called scintillation, or more commonly, twinkling. Scintillation is a remarkably ubiquitous phenomenon in nature—for example, radio waves from sources many light years away scintillate on the timescale of hours, after passing through interstellar clouds between us and the source. The scintillation we are most familiar with is the twinkling of stars. — Eric J. Heller, Why You Hear What You Hear- An…, 2615

Categorization

• DEFINE: Introduces scintillation as the umbrella term with star twinkling and interstellar radio fluctuations as instances.