ZEITGEBER By Nugent, Pam M.S. - April 29, 2013 noun. a cue, like the length of a day, utilized to initiate or time a biological rhythm. ZEITGEBER: "The zeitgeber concept was founded by Jurgen Aschoff, a German biologist." Related Psychology Terms BIOLOGICAL RHYTHM BIOPSYCHOLOGY, BIOLOGICAL RHYTHM BIOLOGICAL CLOCK BIORHYTHMS BASIC REST-ACTIVITY CYCLE (BRAC) ENTRAINMENT BRAIN BIORHYTHM COUPLED OSCILLATORS FREE-RUNNING RHYTHM DIURNAL Cite this page: Nugent, Pam M.S., "ZEITGEBER," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/zeitgeber/ (accessed June 25, 2017).