puerilism n. immature, childish behavior.
cuneus n. (pl. cunei) the wedge-shaped portion...
derangement n. 1. disturbance in the regular or...
eviration n. 1. castration or emasculation. 2....
couch n. in psychoanalysis, the article of furniture on whi...
Piagetian task any of a variety of tasks developed by Jean...