IPA: /ˌpiːdiəˈtrɪʃən/
KK: /ˌpiːdiəˈtrɪʃən/
A doctor who takes care of children and their health.
The pediatrician recommended that my son get his vaccinations.
Pediatrician → It is formed from "ped" (from Greek "pais", meaning child) and "iatros" (meaning physician or healer). The word "pediatrician" refers to a physician who specializes in the care and treatment of children.
Think of a 'child' ('ped') being cared for by a 'healer' ('iatros') — that's why a pediatrician is a doctor for children.