preregistration adjective 2noun 2forms 1 adjective2 •Before registration. •Pertaining to preregistration (of scientific trials or other experiments). noun2 •An early registration, before the normal or traditional time, as with early online check-in at hotels.There is no charge for participation but pre-registration is necessary since space is limited. — 1980 •Registration (of a study design) before a clinical trial (or any other type of scientific experiment) begins, for methodologic and thus epistemologic rigor. formspreregistrations
