(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.

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

plural of son-in-law egg

plural of blue sky law

A small apartment attached to or carved out of a nominally single-family house, ostensibly intended for occupancy by a mother-in-law or other relative, but potentially also rented out to a stranger.

(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.

(US, history) Any law that racially segregated public facilities and which was enacted in Southern and border states in the United States between 1876 and 1965.

A great-grandfather of one's spouse.

plural of law unto oneself

One who is free from the constraints of law or rules. / One who flouts the law or conventional wisdom; one who ignores rules or logic to behave according to his or her own standards.