PELLET By N., Pam M.S. - April 7, 2013 noun. a tiny piece of food utilized in analyses with rats and other animals. Pellets are accessible in common weights and sizes with common contents. PELLET: "The pellets were fed in equal quantities to all of the rabbits in the study." Related Psychology Terms THERMISTOR ZOOPHILIA ELEVATED PLUS MAZE BLACK BOX OSCILLOGRAPH PRECUC ONE-WAY MIRROR MAZE-BRIGHT AND MAZE-DULL RATS ZOOPHARMACOGNOSY YERKISH Cite this page: N., Pam M.S., "PELLET," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/pellet/ (accessed June 18, 2019).