DEHYDRATION By N., Sam M.S. - 1 A lack of water to the tissues in our body. Compare hydration. DEHYDRATION: "Dehydration occurs when we lose water through exercise and the thirst function hasn't activated yet." Related Psychology Terms DEHYDRATION REACTION AER HUNGER LYSERGIC ACID (LSD) ADOLESCENCE (Theories) THIRST ARTERIOSCLEROTIC BRAIN DISORDER REINFORCEMENT (Reward and Punishment) CANNON, WALTER BRADFORD (1871-1945) CHOLINERGIC CHILD PSYCHIATRY Cite this page: N., Sam M.S., "DEHYDRATION," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/dehydration/ (accessed January 23, 2022).