Search Result for "jitter": 
Wordnet 3.0

NOUN (2)

1. small rapid variations in a waveform resulting from fluctuations in the voltage supply or mechanical vibrations or other sources;

2. a small irregular movement; 



WordNet (r) 3.0 (2006):

jitter
    n 1: small rapid variations in a waveform resulting from
         fluctuations in the voltage supply or mechanical vibrations
         or other sources
    2: a small irregular movement


The Free On-line Dictionary of Computing (30 December 2018):

jitter

   Random variation in the timing of a signal, especially a
   clock.

   (1995-01-16)