matter of law

matter of law
    n 1: a disputed legal contention that is generally left for a
         judge to decide [syn: {question of law}, {matter of law}]
    

MATTER OF LAW, pleading. That which goes in avoidance of a declaration or 
other pleading, on the ground that the law does not authorize them. It does 
not deny the matter or fact contained in such pleading, but admitting them 
avoids them. Bac. Ab. Pleas, &c. G 3. Matter of law, is that which is 
referred to the decision of the court; matter of fact that which is 
submitted to the jury.