IPA: /ˌdʒɛrɪˈætrɪʃən/
KK: /ˌdʒɛrɪˈætrɪʃən/
A doctor who focuses on the health care of older adults, helping them manage their medical conditions and improve their quality of life.
The geriatrician recommended a new treatment plan for the elderly patient.
Geriatrician → It is formed from "geras" (meaning old age) and "iatros" (meaning physician or healer). The word refers to a physician specializing in the care of elderly patients.
Think of a doctor ('iatros') who specializes in treating people of 'old age' ('geras') — that's why a geriatrician focuses on elderly care.