arbiter - someone chosen to judge and decide a disputed issue; the critic was considered to be an arbiter of modern literature; the arbitrator's authority derived from the consent of the disputants; an umpire was appointed to settle the tax case.
Hippocrates was a Greek physician born in 460 BC on the  island of Cos, Greece. He became known as the founder of medicine  and was regarded as the greatest physician of hisâ¦ time. He based  his medical practice on observations and on the study of the human  body.
The two sons of Hippocrates, Thessalus and Draco, and his son-in-law, Polybus, were his students. According to Galen, a later physician, Polybus was Hippocrates' true successor, while Thessalus and Draco each had a son named Hippocrates.