rollback

1. (databases) An operation which returns a database, or group of records in a database, to a previous state (normally to the previous commit point).countableuncountable

2. (informal, automotive) A form of flatbed truck adapted or designed specifically as a tow truck or for transporting other vehicles.Synonyms: slide truckcountableinformaluncountable

3. (political science) The strategy of forcing a change in the major policies of a state, usually by replacing its ruling regime, or by totally annihilating an enemy's armed forces and occupying the country, as was done in World War II to Italy, Germany, and Japan.Examples: "During the 1990s the Pope, who played such a central role in the rollback of communism, was one of the few international figures who could be heard speaking out against the new capitalist order."; "Politically, Brzezinski was a centrist, or conservative, Democrat. He criticised both the Eisenhower administration’s “rollback” policy towards communism in Europe, and the Nixon-Kissinger detente."Synonyms: regime changecountableuncountable

4. (aviation) An uncommanded reduction in the thrust of a jet engine.Examples: "The data was examined with respect to oil pressure. This showed that both the left and right engines' oil pressure generally follow each other until the start of the final acceleration, which resulted in first the right and then the left engines rolling back. The left engine oil pressure rose, as expected, as the engine accelerated: the right engine pressure, however, started to decrease, even though the engine was also accelerating prior to its rollback. Whilst, this observation, on the right engine, was based on only a few data points, it can be inferred that this was due to an oil temperature increase at, or close to, the start of the final acceleration. However, the loss of QAR data so close to the left engine rollback meant that it was not possible to draw a similar conclusion for the left engine."countableuncountable