activity theory 1. a school of thought, developed primarily...
temporal perceptual disorder a condition, observed in some...
derived property in Gestalt psychology, a property taken on...
tacrine n. an acetylcholinesterase inhibitor used for the t...
axis n. (pl. axes) 1. in DSM–IV–TR, any of the...
nontraditional marriage a marriage that deviates from the t...