What's the difference between flash and flashback?
Flash
Definition:
(v. i.) To burst or break forth with a sudden and transient flood of flame and light; as, the lighting flashes vividly; the powder flashed.
(v. i.) To break forth, as a sudden flood of light; to burst instantly and brightly on the sight; to show a momentary brilliancy; to come or pass like a flash.
(v. i.) To burst forth like a sudden flame; to break out violently; to rush hastily.
(v. t.) To send out in flashes; to cause to burst forth with sudden flame or light.
(v. t.) To convey as by a flash; to light up, as by a sudden flame or light; as, to flash a message along the wires; to flash conviction on the mind.
(v. t.) To cover with a thin layer, as objects of glass with glass of a different color. See Flashing, n., 3 (b).
(n.) To trick up in a showy manner.
(n.) To strike and throw up large bodies of water from the surface; to splash.
(n.) A sudden burst of light; a flood of light instantaneously appearing and disappearing; a momentary blaze; as, a flash of lightning.
(n.) A sudden and brilliant burst, as of wit or genius; a momentary brightness or show.
(n.) The time during which a flash is visible; an instant; a very brief period.
(n.) A preparation of capsicum, burnt sugar, etc., for coloring and giving a fictious strength to liquors.
(a.) Showy, but counterfeit; cheap, pretentious, and vulgar; as, flash jewelry; flash finery.
(a.) Wearing showy, counterfeit ornaments; vulgarly pretentious; as, flash people; flash men or women; -- applied especially to thieves, gamblers, and prostitutes that dress in a showy way and wear much cheap jewelry.
(n.) Slang or cant of thieves and prostitutes.
(n.) A pool.
(n.) A reservoir and sluiceway beside a navigable stream, just above a shoal, so that the stream may pour in water as boats pass, and thus bear them over the shoal.
Example Sentences:
(1) Osman had gone close before that, flashing a shot over from seven yards after a corner.
(2) The data indicate that hot flashes may start much earlier and continue far longer than is commonly recognized by physicians or acknowledged in textbooks of gynecology.
(3) 'frequent' and probability of 'rare' flashes was 20%.
(4) All are satisfied by [Formula: see text], where N is the size of rod signal, constant for threshold; theta, theta(D) are steady backgrounds of light and receptor noise; varphi is the threshold flash with sigma a constant of about 2.5 log td sec; B the fraction of pigment in the bleached state.
(5) The flash visually evoked cortical potential (VECP) was recorded in 18 human albinos.
(6) The mixed-valence-state cytochrome oxidase mixed with O2 at -24 degrees C and flash-photolysed at -60 to -100 degrees C reacts with O2 and initially forms an oxy compound (A2) similar to that formed from the fully reduced state (A1).
(7) Dementia produced a slowing of the major positive (P2) component of the flash VEP but did not affect the latency of the flash P1 component or the P100 pattern-reversal component.
(8) We have investigated the relationship between rhodopsin photochemical function and the retinal rod outer segment (ROS) disk membrane lipid composition using flash photolysis techniques.
(9) The signal recovers rapidly (approximately 90 s) and can be repeated in a succession of flashes.
(10) Repeated flashes above a few per second do not so much cause fatigue of the VEPs as reduce or prevent them by a sustained inhibition; large late waves are released as a rebound excitation any time the train of flashes stops or is delayed or sufficiently weakened.
(11) Three types of behavior of the compound eye of Daphnia magna are characterized: 'flick', a transient rotation elicited by a brief flash of light; 'fixation', a maintained eye orientation in response to a stationary light stimulus of long-duration; 'tracking', the smooth pursuit of a moving stimulus.
(12) The instrument is based on an established procedure for dark adaptation measurement in which the subject continuously adjusts the threshold luminance of a recurrently flashing stimulus.
(13) Justice League, a followup to Dawn of Justice featuring Batman, Superman and Wonder Woman, arrives in May 2017, with a film starring Flash and the Green Lantern debuting the following Christmas.
(14) A 300 mus decay component of ESR Signal I (P-700+) in chloroplasts is observed following a 10 mus actinic xenon flash.
(15) A comparative study is made, at 15 degrees C, of flash-induced absorption changes around 820 nm (attributed to the primary donors of Photosystems I and II) and 705 nm (Photosystem I only), in normal chloroplasts and in chloroplasts where O2 evolution was inhibited by low pH or by Tris-treatment.
(16) In the presence of dextran sulphate the recombination of hemoglobin with carbon monoxide after flash photolysis is biphasic and the fraction of quickly reacting material increases with dilution of the protein.
(17) For all its posing and grooming, there are no nightclubs - the only flashing lights along this coast are the glowworms strobing across the grass at dusk.
(18) It was a wonderful piece of close control from Cassano, taking out two defenders in one movement, and Balotelli was quicker and more decisive than his marker, Holger Badstuber, to flash his header past Neuer.
(19) The visibility of a 1 degree, 200-msec flash on a large yellow field was measured as a function of the intensity of a coincident pedestal flash (a flash that was the same in both temporal intervals of a two-alternative forced-choice trial).
(20) The mean firing rates were significantly altered by either electrical or flash stimuli repeated 500 times at 0.97 Hz in those units which showed no transitory response.
Flashback
Definition:
Example Sentences:
(1) For example, the Basics Card is touted as an innovative policy when in fact it offers repugnant flashbacks to last century’s mission days when Aboriginal people had their bank accounts controlled by the state.
(2) The flashbacks also screened childhood and adolescent conflicts activated by the job loss.
(3) Flashback patients reported more frequent intrusive items on average and, specifically, more frequent daytime mental imagery.
(4) The film's most chilling image, revealed later on in flashback, is of the tiny Li'l Dice returning to the motel alone and gleefully slaying everyone inside.
(5) The hypothesis that flashbacks can be psychologically determined symptoms is supported by the dynamics of the case and the course of treatment.
(6) It exists only as carefully structured piece of literature, told in flashback and conversation.
(7) The trailer comprises a harrowing clip from the film in which the sniper must choose whether to gun down an Iraqi woman and child who appear to be mounting a suicide attack, interspersed with flashbacks to the soldier’s life in America with his own wife and children.
(8) The similarity of flashbacks to panic attacks suggests treatment trials with monoamine oxidase inhibitors or imipramine for these selected symptoms.
(9) No relation between the flashbacks and protracted psychotic development could be established.
(10) Subjects with and without previous flashbacks participated.
(11) Although many sensory and cognitive cues can elicit flashback phenomena, smell has distinctive characteristics that make evocation of vivid olfactory memories particularly likely.
(12) We have postulated that indeed the flashbacks might represent an amalgam of abnormal neuronal firing along with the expression of a dynamically charged event.
(13) By and large, however, this was a prolonged flashback to Madrid in November 2004 when the comprehensive superiority of Aragonés's team in a 1-0 win was nullified purely because the racist abuse by the Bernabéu crowd was so much more significant a matter.
(14) The phenomenon of delayed recurring hallucinations is a rare but dangerous side-effect of ketamine, not unlike LSD flashbacks.
(15) Everything else is flashback, rewinding to show the drip-drip of humiliations that turn a listless pizza delivery man into a killer with nothing to lose.
(16) Simple correlations and multiple regression analyses both showed extent of marijuana use to be the only drug variable significantly related to acid flashbacks.
(17) The lactate infusions resulted in flashbacks in all seven patients and panic attacks in six patients.
(18) In my ongoing campaign against the past, I’ve weighed up the evidence – extracted largely from those who still suffer chocolate and sunrise orange swirly carpet-related flashbacks – and concluded that it was shit.
(19) Each has had his memory completely wiped, including our hero Thomas, who has terrifying flashbacks he can’t figure out.
(20) This study examined the nature and significance of these flashbacks in a work-injured population.