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.
Medical Definition of CHILD PSYCHOLOGY. : the study of the psychological characteristics of infants and children and the application of general psychological principles to infancy and childhood.What made you want to look up child psychology? the study of the psychological characteristics of infants and children and the application of general psychological principles to infancy and childhood. What made you want to look up child psychology?