(genetics) The concept that all cells in an organism contain identical genes.

(law, US) A legal rule in most patent systems that allows a court to hold a party liable for patent infringement when the infringing device or process does not fall within the literal scope of a patent claim, but nevertheless is equivalent to the claimed invention.

(economics) The idea that consumers are forward-looking and so internalize the government's budget constraint when making their consumption decisions, so that, for a given pattern of government spending, the method of financing such spending does not affect agents' consumption decisions, and thus does not change aggregate demand.

(category theory) An adjunction whose unit and counit are both natural isomorphisms.

A logical fallacy in which an equivalence is drawn between two subjects based on flawed or false reasoning.

plural of equivalent airspeed

(aviation) Dynamic pressure expressed as airspeed; the airspeed at sea level in the International Standard Atmosphere at which an airplane would experience the same dynamic pressure as it does in its current flight conditions; calibrated airspeed corrected for errors introduced by the compressibility of air at nonzero Mach numbers.

A relationship that considers two elements equivalent if one can be obtained from the other by a sequence of transformations of the form yzx -> yxz whenever x zxy whenever x ≤ y < z.

plural of equivalence principle

plural of TNT equivalent