Definition of preregistration
: a special registration (as for returning students) prior to an official registration period <Preregistration for fall classes is closed.>; also : a registration prior to an event, activity, or program <The lecture is free but preregistration is required.>
preregisterplay \(ˌ)prē-ˈre-jə-stər\ intransitive verb
First Known Use of preregistration
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