pedology

The science of the child, theoretical and applied; child-study in its widest sense. The term was apparently introduced by O. Chrisman in 1896. Also paidology.

Pediatrics.

The sub-discipline of soil science that: studies soils as a component of natural systems or deals with soil genesis and soil classification or studies the soil profile or solum in its natural setting.

The study of the behaviour and development of children.

the branch of medicine concerned with the treatment of infants and children