Find over 25,000 psychological definitions


grandmother hypothesis

the proposition, based on evolutionary theory, that the contribution of grandparents (particularly grandmothers) to the care of their grandchildren has been a factor in extending the human lifespan. [proposed by U.S. evolutionary biologist George C. Williams (1926–2010)]

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

May 9th 2024

hybristophilia

hybristophilia

n. sexual interest in and attraction to those who commit crimes. In some cases, this may be directed toward people in prison for various types of criminal activities.