(finance) Alternative form of mint par.

(analytical chemistry) An insoluble matrix of small beads having a charged surface; used as an artificial zeolite in water softeners and in ion exchange chromatography.

(analytical chemistry) A technique that uses ion exchange to separate compounds, anions and cations according to their electrical properties.

(telecommunications) A telecommunications switching system, physically located at a customer's place of business, that provides internal communication between users and also access to outside (trunk) telephone lines.

A market for trading one currency for another.

plural of foreign exchange certificate

(finance) A surrogate currency often used as a tool to control circulation of foreign exchange in countries where the national currency is subject to exchange controls or is not convertible. The certificates may be denominated in local or foreign currency, depending on the exact purpose of the regulation.

plural of ion exchange resin

(archaic) second-person singular simple present form of exchange