Definition of marginalia noun from the Oxford Advanced Learner's Dictionary

     

    marginalia

     noun
    noun
    BrE BrE//ˌmɑːdʒɪˈneɪliə//
     
    ; NAmE NAmE//ˌmɑːrdʒɪˈneɪliə//
     
    [plural] Parts of a book
     
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  1. 1notes written in the margins of a book, etc. See related entries: Parts of a book
  2. 2facts or details that are not very important
  3. Word Origin mid 19th cent.: from medieval Latin, neuter plural of marginalis, from margo, margin- ‘edge’.
See the Oxford Advanced American Dictionary entry: marginalia