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

(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

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

plural of setting rule

(printing, historical) Synonym of composing rule

A section of the American Psychiatric Association's code of ethics, stating that it is unethical for a psychiatrist to give a professional opinion about a public figure they have not examined in person, and whose mental health they have not received consent to discuss.

An ecogeographic principle broadly stating that animals adapted to cold climates have relatively short limbs. Specifically, homeothermic animals in hot climates have low volume-to-surface ratios, and homeothermic animals in cold climates have high volume-to-surface ratios, due to thermal adaptation.

(idiomatic) To set the standard which guides behavior; to control a situation, group, strategy, etc.

Control by the central government of an area that has had its own governing body in the past.