macrocephaly

n. a head circumference that is more than two standard deviations above the mean for age, gender, race, and gestation. Although it can be caused by hydrocephalus or megalencephaly, it does not necessarily indicate abnormality. Benign familial macrocephaly describes a genetic tendency toward large head size that does not result in cognitive or neurological impairment. Compare microcephaly. —macrocephalic adj.

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Psychology term of the day

January 11th 2025

sociometric test

a self-report measure of intermember relations in a group, as used in sociometry to analyze and develop a graphic representation of the group’s structure (see sociogram).