Dictionary

rollback en · NOUN

Pronunciation

• (US) audio

Etymology

The noun is a deverbal from roll back. The verb is a back-formation from the noun despite being redundant to roll back.

Meanings

1. (countable, uncountable) A return to a prior state by undoing some operation, especially of policy or price changes.
   • A bidder that knows it may acquire power at a lower price if it withdraws demand early will be more inclined to do so than a bidder that knows it cannot cause a price rollback. 2004, Paul Robert Milgrom, Putting Auction Theory to Work, page 19:
   • The mining industry also had a hand in two other rollbacks. One was a decision to withdraw a Clinton rule that reduced by 80 percent the permissible standard for arsenic in drinking water. 2001 April 8, “Environmental Rollbacks”, in The New York Times, →ISSN, archived from the original on 18 Feb 2022:
   • Although Mr. Trump has billed his rollback as a boon to the auto industry, automakers say the split-market outcome would be a logistical and financial nightmare for them. 2019 April 10, Coral Davenport, “Automakers Plan for Their Worst Nightmare: Regulatory Chaos After Trump’s Emissions Rollback”, in The New York Times, →ISSN, archived from the original on 27 Aug 2019:
2. (countable, uncountable) A return to a prior state by undoing some operation, especially of policy or price changes. ▸ A withdrawal of military forces.
3. (countable, uncountable) A return to a prior state by undoing some operation, especially of policy or price changes. ▸ An operation which returns a database, or group of records in a database, to a previous state (normally to the previous commit point).
   • Near-synonyms: reversion, revert (sometimes synonymous)
4. (countable, uncountable) The situation where a rollercoaster fails to reach the top of a hill and instead rolls backward.
5. (countable, informal, uncountable) A form of flatbed truck adapted or designed specifically to carry other vehicles, for use in recovery (wrecking, salvage) or for transporting.
   • Near-synonym: tow truck (loosely often synonymous)
6. (countable, uncountable) 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.
   • 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. 2017 May 28, Godfrey Hodgson, “Zbigniew Brzezinski obituary”, in The Guardian, archived from the original on 31 Jul 2020:
   • 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. 2004 December 16, Seumas Milne, “The struggle is no longer against religion, but within it”, in The Guardian, archived from the original on 12 Feb 2021:
7. (countable, uncountable) An uncommanded reduction in the thrust of a jet engine.
   • 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. 2010 February 9, Air Accidents Investigation Branch, “1.11.3 Engine oil recorded data”, in Report on the accident to Boeing 777-236ER, G-YMMM, at London Heathrow Airport on 17 January 2008, archived from the original on 16 Jun 2022, page 44:

Forms

Coordinates

retreat · détente · rout · containment

Deriveds

rollback netcode

Hypernyms

truck · motor vehicle · lorry · vehicle

Synonyms

reversion · tow truck[Appendix:Glossary · regime change · revert · slide truck

Translations (38)

ru вы́вод (withdrawal of military forces) · pl powrót (return to a prior state) · ru ролбэ́к ((computing) operation to return the database to the previous commit point) · fr rollback ((computing) operation to return the database to the previous commit point) · de Rollback (return to a prior state) · de Entzug (withdrawal of military forces) · fi peruutus ((computing) operation to return the database to the previous commit point) · fi palautus ((computing) operation to return the database to the previous commit point) · it arretramento (withdrawal of military forces) · it retromarcia (withdrawal of military forces) · ru роллбэ́к ((computing) operation to return the database to the previous commit point) · ru возвра́т к нача́лу транза́кции ((computing) operation to return the database to the previous commit point) · pl cofnięcie (return to a prior state) · cmn 反轉 /反转 (return to a prior state) · ru отво́д (withdrawal of military forces) · pl odwrót (withdrawal of military forces) · ru отка́т ((computing) operation to return the database to the previous commit point) · pl rollback ((computing) operation to return the database to the previous commit point) · ja 引き出し (withdrawal of military forces) · fi paluu (return to a prior state) · fi palautus aiempaan tilaan ((computing) operation to return the database to the previous commit point) · it arretramento (return to a prior state) · ru отка́т (return to a prior state) · fi vetäytyminen (withdrawal of military forces) · cmn 撤退 (withdrawal of military forces) · cmn 回滾 /回滚 ((computing) operation to return the database to the previous commit point) · ja 巻き返し (return to a prior state) · he הסגה ((computing) operation to return the database to the previous commit point) · ru отме́на (return to a prior state) · ru возвраще́ние к про́йденной то́чке (return to a prior state) · he שחזור ((computing) operation to return the database to the previous commit point) · de Rollback ((computing) operation to return the database to the previous commit point) · pl doktryna odpychania (strategy of forcing a change in the major policies of a state) · fr retrait (withdrawal of military forces) · it ritirata (withdrawal of military forces) · it retrocessione (return to a prior state) · ja ロールバック ((computing) operation to return the database to the previous commit point) · pl wycofanie się (withdrawal of military forces)

rollback en · VERB

Pronunciation

• (US) audio

Etymology

The noun is a deverbal from roll back. The verb is a back-formation from the noun despite being redundant to roll back.

Meanings

1. (transitive) To return to the previous state.
   • The server is unstable, we need to rollback the changes.
2. (intransitive, of a jet engine) To reduce thrust without having been commanded to do so.
   • The first test involved placing the restriction immediately upstream of the FOHE. As it was known that the engine would almost certainly rollback during the first acceleration attempt, only the fourth accident acceleration was attempted: the rollback occurred as predicted. Testing was also conducted with the restriction at the LP pump inlet, with the rollback also occurring as predicted during the fourth acceleration. 2010 February 9, Air Accidents Investigation Branch, “1.16.4.2 Full-scale engine testing (L12)”, in Report on the accident to Boeing 777-236ER, G-YMMM, at London Heathrow Airport on 17 January 2008, archived from the original on 12 Apr 2022, page 92:

Forms

Synonyms

roll back