Medical Suffix
-ian
-ian means a specialist or one who practices (from the Latin -ianus, forming a noun of belonging or practice).
What does -ian mean?
The suffix -ian means a person who specializes in or practices a particular field. It comes from Latin. It appears at the end of words naming a professional. For example, a physician is a person who practices medicine, and a geriatrician specializes in the care of older people. It is related in role to -ologist, which also names a specialist.
Example words using -ian
Related word parts
Frequently asked questions
What does the suffix -ian mean?
It means a person who specializes in or practices a particular field, and comes from Latin.
What is a geriatrician?
It is a specialist in the care of older adults, combining geriatr/o (old age) with -ian.
How is -ian different from -ologist?
Both name a specialist. -ian often attaches to a field of practice, while -ologist attaches to a field of study.
Study reference only — not medical advice. Always consult qualified sources for clinical decisions.