Full Definition of MACHIAVELLIAN. 1. : of or relating to Machiavelli or Machiavellianism. 2. : suggesting the principles of conduct laid down by Machiavelli; specifically: marked by cunning, duplicity, or bad faith.
Sleep medicine is a subspecialty field in the US under several medical specialties including anesthesiology, internal medicine, family medicine, and neurology. Neurosurgery is a distinct specialty that involves a different training path, and emphasizes the surgical treatment of neurological disorders.
A polysomnogram -- or sleep study -- is a multiple-component test that electronically transmits and records specific physical activities while you sleep. The recordings are analyzed by a qualified sleep specialist to determine whether or not you have sleep apnea or another type of sleep disorder.