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
priÂ·marÂ·y care phyÂ·siÂ·cian. A physician in family practice, internal medicine, obstetrics/gynecology, or pediatrics who is a patient's first contact for health care in an ambulatory setting. primary care physician, n the first medical doctor a patient will seek for care.