CRANIAL DIAMETER By N., Sam M.S. - 0 the widest measurement of the skull. CRANIAL DIAMETER: "The infant's cranial diameter was enlarged and immediately noticeable at birth." Related Psychology Terms BIRTH ADJUSTMENTS MENTAL RETARDATION (CAUSES) NEWBORN INFANT (Neonate) PERIPHERAL NERVE FIBER CLASSIFICATION NERVE CONDUCTION APGAR SCORE GESELL, ARNOLD LUCIUS (1880- 1961) PRENATAL DEVELOPMENT AFFECTIONAL DRIVE JUST NOTICEABLE DIFFERENCE (JND; Differential or Difference Threshold) Cite this page: N., Sam M.S., "CRANIAL DIAMETER," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/cranial-diameter/ (accessed February 5, 2023).