a prefix meaning âaboutâ or âaroundâ (perimeter, periscope), âenclosingâ or âsurroundingâ (pericardium), and ânearâ (perigee, perihelion), appearing in loanwords from Greek (peripeteia); on this model, used in the formation of compound words (perimorph). Origin of peri- Expand.
Medicine Specialist registrar, a medical doctor in the United Kingdom receiving advanced training in a specialist field Specialty registrar, new training grade intended to replace specialist registrar Senior registrar, type of medical or dental practitioner in the UK, Ireland, and Australia
Doctors of internal medicine, commonly known as internists, treat and diagnose a variety of illnesses and conditions of the body's major organ systems.General internal medicine is considered a primary care specialty, and internists can serve as the main medical caregiver to almost any patient.There are also 16 board-certifiable subspecialties within internal medicine, making it one of the broadest fields of non-surgical medicine.eneral internal medicine is considered a primary care specialty, and internists can serve as the main medical caregiver to almost any patient. There are also 16 board-certifiable subspecialties within internal medicine, making it one of the broadest fields of non-surgical medicine.