A transition (in literary or theatrical works or films) to an earlier event or scene that interrupts the normal chronological development of the story.

Roget 505: memory, remembrance; retention, retentiveness; tenacity; veteris vestigia flammae [Lat.]; tablets of the memory; readiness.    reminiscence, recognition, recollection, rememoration^†; recurrence, flashback; retrospect, retrospection.    afterthought, post script, PS.    suggestion etc. (information) 527; prompting etc. v.; hint, reminder; remembrancer^†, flapper; memorial etc. (record) 551; commemoration etc. (celebration) 883.    [written reminder] note, memo, memorandum; things to be remembered, token of remembrance, memento, souvenir, keepsake, relic, memorabilia.    art of memory, artificial memory; memoria technica [Lat.]; mnemonics, mnemotechnics^†; phrenotypics^†; Mnemosyne.    prompt-book; crib sheet, cheat sheet.    retentive memory, tenacious memory, photographic memory, green memory^†, trustworthy memory, capacious memory, faithful memory, correct memory, exact memory, ready memory, prompt memory, accurate recollection; perfect memory, total recall.    celebrity, fame, renown, reputation etc. (repute) 873.    ... show more

An unexpected but vivid recurrence of a past experience (especially a recurrence of the effects of an hallucinogenic drug taken much earlier).

Polish: flashback