the branch of medicine concerned with the treatment of infants and children
"Dr. Lee works in pediatrics, so she specializes in treating infants and children."
The branch of medicine that deals with the treatment of children.
"The doctor specializes in pediatrics, so she is the expert on treating sick children."
In plain English: Pediatrics is the branch of medicine that focuses on treating babies, children, and teenagers.
"She chose to study pediatrics because she loves caring for children and their families."
Usage: Pediatrics refers specifically to medical care provided by specialists trained in treating infants, children, and adolescents up to age 18 or early adulthood. Use this term when discussing pediatricians or hospital departments dedicated solely to young patients rather than general family medicine.
The word comes from the Ancient Greek words for child and treatment, combining to mean the medical care of young people. It entered English in the 19th century as a formal term for this branch of medicine.