(sociology) The social class of a given society that controls that society's political agenda, whether as formal aristocracy or party leadership or as an informal unit within democracies.

(zoology) A rule stating that, within a species of endotherms, more heavily pigmented forms tend to be found in more humid environments.

The principle that anything is acceptable to do, use, wear etc. so long as it is cool.

(electronics) A rule describing the relationship between the number of external signal connections to a logic block (i.e. the number of "pins") with the number of logic gates in the logic block.

A rule that limits or forbids the consideration or discussion of a particular topic by members of a legislative or decision-making body.

plural of gag rule

A rule stating that the use of prior probabilities of 0 or 1 should be avoided, except when applied to statements that are logically true or false, so as to leave room for the possibility that something very unlikely is in fact the case.

The rule of a monarch characterized by a lack of consultation with the parliamentary body of the state.

Third-person singular simple present indicative form of rule OK

present participle of rule OK