An amount of change whose combined monetary value exactly matches the value that a seller requires in exchange for goods or services.

(transitive with for) to behave in a way that other people should.

(economics) the proportion at which a commodity can be exchanged for other commodities

plural of exchange value

Abbreviation of exchange.

A place or service that allows intravenous drug users to obtain new hypodermic needles at little or no cost, often in exchange for used ones.

plural of state of exception

(law, philosophy) A condition in which ordinary laws or norms have been suspended by a political authority.

plural of excess kurtosis

(statistics) Kurtosis minus 3; the difference between the kurtosis of a given distribution and the kurtosis of a normal distribution.