Definition of footnote noun from the Oxford Advanced American Dictionary

     

    footnote

     noun
    noun
    NAmE//ˈfʊtnoʊt//
     
     
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  1. 1an extra piece of information that is printed at the bottom of a page in a book
  2. 2(of an event or a person) that may be remembered but only as something or someone that is not important The incident seems destined to become a mere footnote in history.
See the Oxford Advanced Learner's Dictionary entry: footnote