from The Century Dictionary.

  • noun In mathematics, the process of obtaining the domain Ω from the domain Ω by adding to it the number a which does not already belong to it, and adding also all numbers arising from a finite number of additions, subtractions, multiplications, and divisions involving a and all numbers in the domain Ω. See the extract.
  • noun The act of joining; the state of being joined. The thing joined.
  • noun In civil law, the joining of one person's property to that of another permanently, as the building of a house upon another's land, painting of a picture on another's canvas, and the like.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The act of joining; the thing joined or added.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The act of joining; the thing joined or added.
  • noun category theory A form of similarity between a pair of categories mapped to each other by dual morphisms.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an act of joining or adjoining things


from Wiktionary, Creative Commons Attribution/Share-Alike License

Latin adjunctio, from adjungere: compare French adjonction, and see adjunct.


  • The negation operator ¬X can be introduced from the last adjunction.

    Category Theory

  • He half turned his head for a moment and I then perceived that he had become unrecognisable owing to the adjunction to his cheeks of enormous red pockets which prevented him from opening his mouth and his eyes properly, so much so that I stood stupefied not wanting to show that I noticed this sort of anthrax to which it was more becoming that he should allude first.

    Time Regained

  • The adjunction of water at this stage perturbs the ongoing chemical process.

    Chapter 7

  • It is therefore impossible that God should belong to a genus as a species of it, since in God there is no adjunction of the potential with the actual.

    Nature and Grace: Selections from the Summa Theologica of Thomas Aquinas

  • There were things on what-nots: little photograph-frames, loose photographs, lucky charms, china cups; all shining and bright, thanks to the adjunction of a lady's maid, as Pa called Maud, in his funny way.

    The Bill-Toppers

  • It will be at once seen that this arrangement permits of continuing the distribution of electricity to the interior of buildings by the simple adjunction of one or several bobbins.

    Scientific American Supplement, No. 455, September 20, 1884

  • Where this is done in good faith, the product belongs to the artist or labourer with the obligation on his part of indemnifying the owner of the materials. (b) By adjunction, when one's labour and material have been so united with the property of another that they cannot be separated.

    The Catholic Encyclopedia, Volume 1: Aachen-Assize

  • This relation of adjunction issues in a peculiar relation between the boundaries of the two events.

    The Concept of Nature The Tarner Lectures Delivered in Trinity College, November 1919

  • It is only as his own creature that he has given so much advancement to the keeper of the seals, considering him wholly his, good, amiable, and of solid merit, without the aid of any intrigue; and so his adjunction to the premier minister has made the keeper of the seals a butt for all the ministers.

    A Popular History of France from the Earliest Times, Volume 6

  • And, doubtless, this adjunction of epithets for the purpose of additional description, where no particular attention is demanded for the quality of the thing, would be noticed as giving a poetic cast to a man's conversation.

    Biographia Literaria


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