(law, US) In the United States, a law that regulates the offering and sale of securities to protect the public from fraud, requiring the registration of all securities offerings and sales, as well as of stock brokers and brokerage firms.

Misspelling of Kirchhoff's voltage law.

Misspelling of Kirchhoff's current law.

(physics) Newton's observation that the rate of change of the momentum of a body is directly proportional to, and in the same direction as, the net force acting on it.

(physics) Newton's observation that to every action (force applied) there is an equal and opposite reaction (equal force applied in the opposite direction)

(physics) The observation that objects in motion tend to stay in motion, and objects at rest tend to stay at rest unless an outside force acts upon them.

The "rule" that words or phrases borrowed between languages will be modified in their pronunciation as necessary to conform to the set of sounds used by the borrowing language.

(law) A law that exempts from legal liability a person who attempts to give reasonable aid to another person who is injured, ill, or otherwise imperiled.

(law) The law as a set of specific concrete rules set down by longstanding precedents.

(statistics) The statistical tendency toward a fixed ratio in the results when an experiment is repeated a large number of times; law of averages.