jitter

nouns

small rapid variations in a waveform resulting from fluctuations in the voltage supply or mechanical vibrations or other sources
jitter
is a type of (narrower)
electrical or acoustic activity that can disturb communication
disturbance, interference, noise
a small irregular movement
jitter
is derived from
jittery
is a type of (narrower)
a natural event that involves a change in the position or location of something
motion, movement