Senior registrar
A Senior Registrar is a type of doctor in the United Kingdom or Ireland.
Senior Registrars (SRs) were medical (or dental) practitioners who were undertaking, or had completed, several years of higher level training in a hospital specialty or Public Health but had not yet gained a position as consultant (either by choice or because the competition was too stiff), thus differentiating them from the modern day Specialist registrars who are still completing training.