(biology) The study of the physiological changes that occurs within individual organisms from their conception through reaching physical maturity.

A type of psychologist who focuses on systematic psychological changes, emotional changes, and perceptual changes that occur in human beings over the course of their life span

plural of developmental position

plural of developmental psychologist

One who studies developmental biology.

plural of developmental biologist

(biology) A branch of biology that studies the interaction of evolutionary and developmental processes.

(psychiatry) Any of a group of five disorders characterized by delays in the development of multiple basic functions including socialization and communication. They are: Asperger syndrome, autism, childhood disintegrative disorder, Rett syndrome, and PDD-NOS.

plural of pervasive developmental disorder