What is the meaning of Flashback?

A dramatic device in which an earlier event is inserted into the normal chronological flow of a narrative.

A vivid mental image of a past trauma or other sensation that the trauma is happening in the present, especially one that recurs.

A similar recurrence of the effects of a hallucinogenic drug.

The condition of the flame propagating down the hose of an oxy-fuel welding system.

A query that operates against data from an earlier time, before it was changed.

To undergo a flashback; to experience a vivid mental image from the past.

flashback

flashback

flashback (earlier event inserted into the normal chronological flow of a narrative)

flashback

flashback

Source: wiktionary.org