n.1 an official responsible for keeping a register or official records.
2 the chief administrative officer in a university.
3 a middle-ranking hospital doctor undergoing training as a specialist.
4 (in the UK) the judicial and administrative officer of the High Court etc.
Phrases and idioms:
Registrar General a government official responsible for holding a population census.
Derivatives:
registrarship n.
Etymology: med.L registrarius f. registrum REGISTER