PHASE By N., Sam M.S. - 2 noun. 1. a phase in the developing of life, like pubescence or adulthood. 2. a repetitive state of any cyclical procedure . PHASE: "The phases of child development are crucial to adult wellbeing." Related Psychology Terms Piaget’s Theory of Cognitive Development ADOLESCENCE (Theories) CHILD PSYCHOLOGY CHILD PSYCHIATRY A Comparison of Maternal and Paternal Filicide DREAM-STATE (D-STATE, REM- STATE) TRANSACTIONAL ANALYSIS ENURESIS (Bed-wetting) DISCIPLINE (literally, “to learn”) SULLIVAN, HARRY STACK (1892- 1949) Cite this page: N., Sam M.S., "PHASE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/phase/ (accessed February 2, 2023).