(intransitive, slang, derogatory) To behave as a rules lawyer.

An analog calculator consisting of three interlocking strips marked with logarithmic scales, such that multiplication, division etc. can be performed by the equivalent of addition and subtraction.

(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.

(transitive) To cross an item out by drawing a straight line through it, as with a ruler. / (idiomatic, transitive) To reject an option from a list of possibilities.

Australian rules football.

(chemistry) A rule stating that atoms lose, gain, or share electrons in order to have a full valence shell of 8 electrons. (Hydrogen is excluded because it can hold a maximum of 2 electrons in its valence shell.)

Government by violent gangs, or by the masses.

(law) A test of criminal insanity by which "it must be clearly proved that, at the time of committing the act, the party accused was labouring under such a defect of reason, from disease of the mind, as not to know the nature and quality of the act he was doing, or, if he did know it, that he did not know he was doing what was wrong".

(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.