English One word Substitutes Online Test 4

One word substitute is Geriatrics.

Oncology: the study and treatment of tumours.
Geriatrics: the branch of medicine or social science dealing with the health and care of old people.
Obstetrics: the branch of medicine and surgery concerned with childbirth and midwifery.
Endocrinology: the branch of physiology and medicine concerned with endocrine glands and hormones.