Synonym of first past the post

An observation that, in a parliamentary election, the ration of seats won by each party is proportional to the cube of the percentage of the vote obtained by each party

plural of ruling grade

(rail transport) synonym of ruling gradient

The principle that one should treat people the way they want to be treated, as opposed to the way you want them to treat you.

plural of sliding-rule

Dated form of slide rule.

An ecogeographical rule stating that latitudinal ranges of plants and animals are generally smaller at lower latitudes than at higher latitudes.

plural of work to rule

A narrow board with a plumb line fastened to the top, used to determine a perpendicular.