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inverse
WIKTIONARY
inverse
Adjective
  • ∙ Inverted in its various senses, including:
    • ∙ Upside down. properly
    • ∙ Reverse: opposite in order, nature, or effect. figuratively
    • ∙ Mutually exclusive to a given, beginning when it ceases and vice versa.
    • ∙ Mutually negating: having the property of producing an output identical to the input of a given operation. mathematics
    • ∙ Opposite in nature or effect. mathematics
    • ∙ Related to an initial point, line, &c. through circle inversion. geometry
    • ∙ Having certain reversed crystalline structures. mineralogy
    • ∙ Having a position or mode of attachment reversed from the normal arrangement. botany
Noun
  • ∙ An inverted state: a state in which something has been turned upside down or inside out or backwards. loosely
  • ∙ The result of an inversion, particularly:
    • ∙ The reverse of any procedure or process.
    • ∙ A ratio &c. in which the antecedents and consequents are switched. mathematics
    • ∙ The result of a circle inversion; the set of all such points; the curve described by such a set. geometry
    • ∙ The non-truth-preserving proposition constructed by negating both the premise and conclusion of an initially given proposition. logic
  • ∙ A second element which negates a first; in a binary operation, the element for which the binary operation—when applied to both it and an initially given element—yields the operation's identity element, specifically: mathematics
    • ∙ The negative of a given number. addition
    • ∙ One divided by a given number. multiplication
    • ∙ A second function which, when combined with the initially given function, yields as its output any term inputted into the first function. functions
  • ∙ A morphism which is both a left inverse and a right inverse. category theory
  • ∙ The winning of the coup in a game of rouge et noir by a card of a color different from that first dealt; the area of the table reserved for bets upon such an outcome. card games
  • ∙ A grammatical number marking that indicates the opposite grammatical number (or numbers) of the default number specification of noun class. linguistics, Kiowa-Tanoan
Verb
  • ∙ To compute the bearing and distance between two points. surveying