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See also: supplément




From Latin supplementum (that which is added to supply a shortage), from supplere (to provide something).



supplement (plural supplements)

  1. Something added, especially to make up for a deficiency.
    • 2013 March 1, David S. Senchina, “Athletics and Herbal Supplements”, in American Scientist, volume 101, number 2, page 134:
      Athletes' use of herbal supplements has skyrocketed in the past two decades. At the top of the list of popular herbs are echinacea and ginseng, whereas garlic, St. John's wort, soybean, ephedra and others are also surging in popularity or have been historically prevalent.
  2. An extension to a document or publication that adds information, corrects errors or brings up to date.
  3. An additional section of a newspaper devoted to a specific subject.
    • 1907, Robert William Chambers, chapter IV, in The Younger Set (Project Gutenberg; EBook #14852), New York, N.Y.: D. Appleton & Company, published 1 February 2005 (Project Gutenberg version), OCLC 24962326:
      "Mid-Lent, and the Enemy grins," remarked Selwyn as he started for church with Nina and the children. Austin, knee-deep in a dozen Sunday supplements, refused to stir; poor little Eileen was now convalescent from grippe, but still unsteady on her legs; her maid had taken the grippe, and now moaned all day: "Mon dieu! Mon dieu! Che fais mourir!"
  4. (geometry) An angle that, when added to a given angle, makes 180°; a supplementary angle.
  5. (nutrition, bodybuilding) A vitamin, herbal extract or chemical compound ingested to meet dietary deficiencies or enhance muscular development.



supplement (third-person singular simple present supplements, present participle supplementing, simple past and past participle supplemented)

  1. To provide or make a supplement to something.