(chemistry, historical) An early industrial method of producing sodium carbonate. It involved two stages: production of sodium sulfate from sodium chloride, followed by reaction of the sodium sulfate with coal and calcium carbonate to produce sodium carbonate.

Any of many techniques in which data is retrieved, stored, classified, manipulated, transmitted and/or reported in such a way as to generate information; especially such processing using computers.

(law) A legal concept where a person is ensured all legal rights when deprived of their liberty for a given reason.

An observation that contradicts an accepted law or theory.

A person who reads proof, copy or other text, looking for errors and making corrections

A mental representation of a particular problem, including initial, final and possible intermediate states

(mathematics) A measurable space having a unit measure

The utilization of low gravity and/or high vacuum to carry out various processes in space

(space science) A robotic space vehicle designed to voyage beyond Earth's orbit.

A church used in place of a cathedral.