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Longman Dictionary of Contemporary English
washout
noun
EXAMPLES FROM OTHER ENTRIES
▪ Parts of Highway 40 remain closed due to mudslides and washouts.
The Collaborative International Dictionary
Washout

Washout \Wash"out`\, n.

  1. The washing out or away of earth, etc., especially of a portion of the bed of a road or railroad by a fall of rain or a freshet; also, a place, especially in the bed of a road or railroad, where the earth has been washed away.

  2. a complete failure; -- of an enterprise.

  3. a person who has failed a course of study or training, leaving the program before its completion.

Wiktionary
washout

n. 1 An appliance designed to wash something out. 2 (context biology medicine English) The cleaning of matter from a physiological system using a fluid. 3 (context meteorology English) The action whereby falling rainwater clean particles from the air. 4 A channel produced by the erosion of a relatively soft surface by a sudden gush of water. 5 (context informal English) A disappointment or total failure; an unsuccessful person. 6 A sporting fixture that could not be completed because of rain. 7 The aerodynamic effect of a small twist in the shape of an aircraft wing

WordNet
washout
  1. n. the channel or break produced by erosion of relatively soft soil by water; "it was several days after the storm before they could repair the washout and open the road"

  2. the erosive process of washing away soil or gravel by water (as from a roadway); "from the house they watched the washout of their newly seeded lawn by the water" [syn: wash]

  3. someone who is unsuccessful [syn: flop, dud]

Wikipedia
Washout

A washout is the sudden erosion of soft soil or other support surfaces by a gush of water, usually occurring during a heavy downpour of rain (a flash flood) or other stream flooding. These downpours may occur locally in a thunderstorm or over a large area, such as following the landfall of a tropical cyclone. If a washout occurs in a crater-like formation, it is called a sinkhole, and it usually involves a leaking or broken water main or sewerage pipes. Other types of sinkholes, such as collapsed caves, are not washouts.

Widespread washouts can occur in mountainous areas after heavy rains, even in normally dry ravines. A severe washout can become a landslide, or cause a dam break in an earthen dam. Like other forms of erosion, most washouts can be prevented by vegetation whose roots hold the soil and/or slow the flow of surface and underground water. Deforestation increases the risk of washouts. Retaining walls and culverts may be used to try to prevent washouts, although particularly severe washouts may even destroy these if they are not large or strong enough.

Washout (comics)

Washout (John Lopez) was a fictional mutant character in the Marvel Universe of comics. The character first appeared in a one-page cameo in X-Force vol. 1 #129 before being given a larger role in the Weapon X series.

Washout (disambiguation)

Washout is the erosion of a soft surface by a gush of water.

Washout may also refer to:

  • Washout (aviation), the practice of building a wing with a twist from root to tip
  • Washout (comics), a mutant character in the Marvel Comics universe
  • "Washout", a song by The Fallout Trust
  • Washed Out, the stage name of chillwave musician Ernest Greene
  • The well drilling process for enlarging a drill hole in an oil well
  • A term for a sporting event cancelled due to rain; see Rainout (sports)
  • An alternate name for a Run-in period, a common phase in clinical research
Washout (aeronautics)

Washout refers to a feature of wing design to deliberately reduce the lift distribution across the span of the wing of an aircraft. The wing is designed so that the angle of incidence is greater at the wing roots and decreases across the span, becoming lowest at the wing tip. This is usually to ensure that, at the stall speed, the wing root stalls before the wing tips, providing the aircraft with continued aileron control and some resistance to spinning. Washout may also be used to modify the spanwise lift distribution to reduce lift-induced drag.

Washout is commonly achieved by designing the wing with a slight twist, reducing the angle of incidence from root to tip, and therefore causing a lower angle of attack at the tips than at the roots. This feature is sometimes referred to as structural washout, to distinguish it from aerodynamic washout.

Wingtip stall is unlikely to occur symmetrically, especially if the aircraft is maneuvering. As an aircraft turns, the wing tip on the inside of the turn is moving more slowly and is most likely to stall. As an aircraft rolls, the descending wing tip is at higher angle of attack and is most likely to stall. When one wing tip stalls it leads to wing drop, a rapid rolling motion. Also, roll control may be reduced if the airflow over the ailerons is disrupted by the stall, reducing their effectiveness.

On aircraft with swept wings, wing tip stall also produces an undesirable nose-up pitching moment which hampers recovery from the stall.

Washout may be accomplished by other means e.g. modified aerofoil section, vortex generators, leading edge wing fences, notches, or stall strips. This is referred to as aerodynamic washout. Its purpose is to tailor the spanwise lift distribution or reduce the probability of wing tip stall.

Winglets have the opposite effect to washout. Winglets allow a greater proportion of lift to be generated near the wing tips. (This can be described as aerodynamic wash-in.) Winglets also promote a greater bending moment at the wing root, possibly necessitating a heavier wing structure. Installation of winglets may necessitate greater aerodynamic washout in order to provide the required resistance to spinning, or to optimise the spanwise lift distribution.

The reverse twist (higher incidence at wingtip), wash-in, can also be found in some designs though less common.

Usage examples of "washout".

Fingerhood, Jimmy, her co-star, her husband, the movie composer she screwed in desperation the night she lost the Oscar, the cameraman whose only interest was her labia minora which he said resembled a pink tea rose, the construction worker she picked up on a dare and was let down by with a bang, even the midgetthey all agreed she was a washout in bed.

Floods, windstorms, and frost had transformed the once open and smooth highways into rough lines of concrete chunks strewn with gravel from washouts, overgrown with vegetation, and crisscrossed with fallen tree-trunks.

Even though the fires would burn themselves out, the roads across the Sierra would be permanently blocked by many fallen trees and by landslides and washouts upon the denuded slopes.

They had encountered only a few minor washouts and landslides on the highway to Los Angeles, nothing that the jeep could not negotiate in four-wheel drive.

Because Honeybloom had a Kirlian aura of about one, or average: a washout as far as interaction with his own aura went.

As for mathematical ability, she had learned her multiplication tables, but as for being a lightning calculator, she was a washout.

The solidity was there, a sudden jump in every mass/drive instrument on the bridge, lights flaring red, a static washout on the number four screen: Kita Point mass, a chunk of rock, a cinder radiating only the dimmest warmth into the dark, light-less, lonely, and far, far too big for The Pride to drag with her into jump.

There were other washouts, who didn't pass the intelligence tests, but those were never offered to the Lacu'un-they already filled a steady need for companions in children's hospitals and retirement homes, where the high shipscat intelligence wasn't needed, just a loving friend smart enough to understand what not to do around someone sick or in pain.

There were other washouts, who didnt pass the intelligence tests, but those were never offered to the Lacuunthey already filled a steady need for companions in childrens hospitals and retirement homes, where the high shipscat intelligence wasnt needed, just a loving friend smart enough to understand what not to do around someone sick or in pain.

He went without saying that the cull disliked anything anyway approaching a plain straightforward standup or knockdown row and, as often as he was called in to umpire any octagonal argument among slangwhangers, the accomplished washout always used to rub shoulders with the last speaker and clasp shakers (the handtouch which is speech without words) and agree to every word as soon as half uttered, command me!

By the time he'd hauled himself out of the washout the two boys were aboard the gondola and being sculled away, back into the shadowed bowels of the city.

But past there the roads kept getting worse and worse—trees grown up, trees fallen around everywhere, lots of washouts, bridges gone.

The riders were all out there in the horse den or out on the road fixing washouts, and Tara had the center of attention right now in camp.

Tarmin and the rest of the high-country villages in Anveney’s mining union should have raised hell about the washouts and the brush.

There were other washouts, who didn't pass the intelligence tests, but those were never offered to the Lacu'un—they already filled a steady need for companions in children's hospitals and retirement homes, where the high shipscat intelligence wasn't needed, just a loving friend smart enough to understand what not to do around someone sick or in pain.