(physics) A law which shows that the magnetic susceptibility of a paramagnetic dipole is inversely proportional to the absolute temperature; the basis of operation of magnetic thermometers.

(physics) The law stating that the density of an ideal gas is inversely proportional to its temperature at constant pressure.

(law, idiomatic) A law dealing with defective items, especially automobiles, and consumers' rights.

(optics) Snell's law

(optics) the law that, for a ray incident on the interface of two media, the sine of the angle of incidence times the index of the refraction of the first medium is equal to the sine of the angle of refraction times the index of refraction of the second medium

Of or pertaining to common law. / Relating to common-law marriage.

(idiomatic) Exempt from the laws that apply to everyone else.

(chemistry) Any of the laws of nature that are relevant to chemistry.

(physics) The law that states that a confined fluid transmits externally applied pressure uniformly in all directions; the basis of hydraulics.

(physics) the principle that the stress applied to a solid is directly proportional to the strain produced. This law describes the behavior of springs and solids stressed within their elastic limit.