PREFIXES
pre-
What is before
retinopathy
what is an ophthalmologist?
pertaining to the head
cephalic
back, backward
what is re-
renal failure
What is a nephrologist
without, not
What is a-, an-
heart attack
What is a cardiologist?
across, through
What is trans-
iron deficiency anemia
hematologist
Ovarian cysts
What is a gynecologist?