UNDERSHOOT By N., Sam M.S. - 25 noun. the part of an action potential which symbolizes the phase when the membrane potential is temporarily hyperpolarized relative to the resting potential. UNDERSHOOT: "You'll need to define the undershoot within each of the examples listed." Related Psychology Terms HEARING OVERSHOOT CYCLOTHYMIC PERSONALITY (Cycloid Personality) NERVE CONDUCTION ADOLESCENCE (Theories) ALCOHOLIC ADDICTION HABIT Piaget’s Theory of Cognitive Development Discrimination and Mental Illness in the LGBT Population AUDITORY SPACE PERCEPTIO Cite this page: N., Sam M.S., "UNDERSHOOT," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/undershoot/ (accessed June 30, 2022).