ˈregistratorrare. [a. med.L. registrātor, agent-n. f.registrāre to register. Cf. G. registrator, F. régistrateur.] One who registers, a registrar. 1802–12Bentham Ration. Judic. Evid. (1827) I. 523 In case of registration..publicity serves as a security for the correctness..of the work of the registrator.