Jitterille

Jitterille is a term used informally in discussions about timing analysis and signal processing to describe small, rapid fluctuations in the temporal spacing of discrete events within a system. It is distinct from broader notions of jitter by emphasizing micro-timing variations that occur within or between clock cycles. Because there is no formal standard definition, jitterille is typically described qualitatively or as a “micro-jitter” phenomenon in non-technical contexts.

Origin and etymology: The coinage appears to combine the English word jitter with the diminutive French suffix -ille, suggesting a “small jitter.” It has appeared sporadically in online glossaries, hobbyist literature, and some informal technical discussions since the late 1990s, but it remains uncommon in formal standards or peer-reviewed sources.

Applications and measurement: In practice, jitterille may be used to discuss residual timing variations after larger jitter components have been modeled or removed. It is not associated with a formal unit or measurement protocol, and its characterization is typically qualitative or based on relative statistics of inter-event intervals (for example, variance or higher-order moments) or time-domain visualizations. Because of its informal status, different researchers or practitioners may apply different thresholds or interpretive criteria.

See also: Jitter, Timing analysis, Clock skew, Phase noise, Inter-arrival time distribution.