blastoderm: the germinal membrane from which the organs of the embryo are formed. Explanation of Terms Used in Entomology John. B. Smith He it was who introduced the terms Keimhaut (blastoderm) and Keimblatt (germ-layer).
Child Study. Child study, also called paidology or experimental pedagogy, was the attempt to apply the methods of modern science to the investigation of children in order to discover the laws of normal child development.
A child psychiatrist is a doctor who specializes in diagnosing and treating behavioral and thought disorders in children. A child psychiatrist uses his knowledge on many factors including biological and psychological factors, in order to devise a treatment plan for a child with behavior and thought disorders.