LATIN DICTIONARYLexicon Latīnum
nounthird declension

fictiō juris

fictiō juris f (genitive fictiōnis juris)

Meaning

  1. A false premise in a court case taken as true so as to reach a desired end
    In capitalist societies, the fictio juris prevails that all buyers possess an encyclopedic knowledge of commodities.

Quick answers

What does fictiō juris mean in Latin?
fictiō juris, a noun, means “A false premise in a court case taken as true so as to reach a desired end”.
What is the genitive of fictiō juris?
The genitive singular is fictiōnis juris. fictiō juris is third declension.