(law) A decree issued by the court that becomes absolute at some later date unless cause is shown why it should not.

(law) The doctrine that no individual is above the law and that everyone must answer to it. / (law) The maxim whereby governmental decisions are made by applying known legal principles.

a pen used in graphic design and calligraphy for drawing precise lines of various thicknesses

(idiomatic) A fundamental rule or principle. / (ethics) The principle that one should treat other people in the manner in which one would want to be treated by them.

(law) The rule stating that an unborn child, if subsequently born alive, is considered as already in existence whenever it is to its own advantage.

Alternative form of McNaughton rules

(physics) the rule which states that the number of degrees of freedom in a system at equilibrium equals the number of components minus the number of phases plus 2

(computing, of a computing language, or expert system) based on a series of simple "if then" rules

(sports) A rule that ends a one-sided contest prior to its natural conclusion.

(physics) Any of several general rules concerning the transitions between the states of a quantum mechanical system; they derive from the symmetry properties of the states and of their interactions