"specialist or expert in pediatrics," 1884, from pediatric + -ian.
Entries linking to pediatrician
pediatric adj.
"of or pertaining to the medical care or diseases of children," 1849, from Latinized form of Greek paid-, stem of pais "child" (see pedo-) + -iatric.
-ian
variant of suffix -an (q.v.), with connective -i-. From Latin -ianus, in which the -i- originally was from the stem of the word being attached but later came to be felt as connective. In Middle English frequently it was -ien, via French.