Registrant
['redʒɪstr(ə)nt]
Definition
(noun.) a person who is formally entered (along with others) in a register (and who obtains certain rights thereby).
Edited by Daisy--From WordNet
Definition
(n.) One who registers; esp., one who , by virtue of securing an official registration, obtains a certain right or title of possession, as to a trade-mark.
Typist: Terrence