(organic chemistry) A series of guidelines outlining the relative favorabilities of ring closure reactions in alicyclic compounds.

(phonetics) The rule describing a special case of tone reduction in Bantu languages, where in some contexts the second of two adjacent high tones is lowered.

(ethics) A form of utilitarianism that says an action is right as it conforms to a rule that leads to the greatest good.

plural of personal rule

plural of majority rule

A rule stating that population lineages tend to increase in body size over evolutionary time.

plural of rule-of-thumb

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

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.