Definitions for "One-name study"
a genealogical project researching all occurrences of a surname, as opposed to a particular pedigree (ancestors of one person) or descendancy (descendants of one person or couple)
a particular form of genealogical research which endeavours to record all occurrences of a name wherever they may be found
a project, carried out by a single person, or a group, researching all occurrences of a particular surname and its variants, throughout the world, over all recorded time