jitter UK /ˈd͡ʒɪtə(ɹ)/US /ˈd͡ʒɪtɚ/noun 5verb 2forms 3 noun5 •[in the plural] A state of nervousness.That creepy movie gave me the jitters. •An abrupt and unwanted variation of one or more signal characteristics.Now you have mirror-clear TV without picture flopover, jitter, tear! — 1956 •A nervous action; a tic. •A random positioning of data points to avoid visual overlap. •A program or routine that performs jitting; a just-in-time compiler. verb2 •To be nervous. •To position data points randomly to avoid visual overlap. formsjittered · jittering · jitters