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Glossary of Aerodynamics Terms
beginning with letter S
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sailplane Tweet Definition of sailplane Like Definition of sailplane on Facebook
  1. A glider.
sausage Tweet Definition of sausage Like Definition of sausage on Facebook
  1. A food made of ground meat and other animal parts, herbs and spices, and sometimes other ingredients, generally packed in a casing (traditionally the intestines of the animal), and preserved in some way; usually somewhat hard and cut into slices for eating.
  2. A small, soft version of this food that must be cooked before eating and is often sold in strings.
scramjet Tweet Definition of scramjet Like Definition of scramjet on Facebook
  1. A jet engine capable of propelling an aircraft at hypersonic speeds; combustion of the fuel/air mixture occurs at supersonic speeds
seaplane Tweet Definition of seaplane Like Definition of seaplane on Facebook
  1. (context, aircraft, nautical) Any aircraft capable of taking off from, and alighting on the surface of water
sesquiplane Tweet Definition of sesquiplane Like Definition of sesquiplane on Facebook
  1. A biplane having one long wing and one short one above or below it.
shoot Tweet Definition of shoot Like Definition of shoot on Facebook
  1. The bud of a plant.
  2. A photography session.
  3. (professional wrestling slang) In professional wrestling, an event that is unscripted or legitimate.
verb (shoots, shooting, shot, shot, or rarely shotten)
  1. To fire one or more shots.
The man, in a desperate bid for freedom, grabbed his gun and started shooting anyone he could.
  1. To hit with a shot.
He was shot by a police officer.
  1. To move very quickly and suddenly.
After an initial lag, the experimental group's scores shot past the control group's scores in the fourth week.
  1. To photograph.
  2. To blame a messenger for the contents of the message.
Please don't the messenger.
  1. (professional wrestling) In professional wrestling, to deviate from kayfabe, either intentionally or accidentally; to actually connect with unchoreographed fighting blows and maneuvers, or speak one's mind (instead of an agreed-to script).
  2. (surveying) To measure the distance and direction to (a point).
  3. (sports) To make the stated score.
In my round of golf yesterday I shot a 76.
shroud Tweet Definition of shroud Like Definition of shroud on Facebook
  1. That which clothes, covers, conceals, or protects; a garment.
  2. Especially, the dress for the dead; a winding sheet.
  3. That which covers or shelters like a shroud.
  4. A covered place used as a retreat or shelter, as a cave or den; also, a vault or crypt.
  5. The branching top of a tree; foliage.
  6. (Nautical) A rope or cable serving to support the mast sideways.
    • See also Wikipedia article on (w, Shroud (sailing))
      1. One of the two annular plates at the periphery of a water wheel, which form the sides of the buckets; a shroud plate.
  1. To cover with a shroud.
  2. (idiomatic): To conceal or hide from view, as if by a shroud.
The details of the plot were shrouded in mystery.
skid Tweet Definition of skid Like Definition of skid on Facebook
  1. An out of control sliding motion as would result from applying the brakes too hard in a car.
  2. A ski shaped runner or supporting surface as found on a helicopter or other aircraft in place of wheels.
skyway Tweet Definition of skyway Like Definition of skyway on Facebook
  1. An airplane route.
slat Tweet Definition of slat Like Definition of slat on Facebook
  1. A thin, narrow strip or bar of wood or metal; as, the slats of a window blind.
  2. (aeronautical) A moveable control surface at the leading edge of a wing that when moved, changes the chord line of the airfoil, affecting the angle of attack. Employed in conjunction with flaps to allow for a lower stall speed in the landing attitude, facilitating slow flight.
verb (slats, slatting, slatted, slatted)
  1. To construct or provide with at least one slat.
slip Tweet Definition of slip Like Definition of slip on Facebook
  1. An act or instance of slipping.
  2. A women's undergarment worn under a skirt or dress.
  3. A small piece of paper.
  4. A berth for a boat or ship.
  5. A mistake or error (slip of the tongue.)
  6. (uncountable) In ceramics, a thin, slippery mix of clay and water.
  7. (cricket) Any of several fielding positions to the off side of the wicket keeper, designed to catch the ball after being deflected from the bat; a fielder in that position (See first slip, second slip, third slip, fourth slip and fifth slip.)
  8. The difference between the speed of a rotating magnetic field and the speed of its rotor.
verb (slip, p, ing)
  1. (intransitive) To lose one's traction on a slippery surface; to slide due to a lack of friction.
  2. (intransitive) To err.
  3. (transitive) To pass (a note, etc.)
    • 1883, w:Robert Louis Stevenson, Robert Louis Stevenson, w:Treasure Island, Treasure Island
    • : We slipped along the hedges, noiseless and swift...
slipstream Tweet Definition of slipstream Like Definition of slipstream on Facebook
  1. the low pressure zone immediately following a rapidly moving object, caused by turbulence
  1. to take advantage of the suction produced by a slipstream by travelling immediately behind the slipstream generator
Although dangerous, over the road truck drivers sometimes with each other to save fuel.
slot Tweet Definition of slot Like Definition of slot on Facebook
  1. A broad, flat, wooden bar, a slat, especially as used to secure a door, window, etc.
  2. A metal bolt or wooden bar, especially as a crosspiece.
  3. (electrical) A channel opening in the stator or rotor of a rotating machine for ventilation and insertion of windings.
verb (slots, slotting, slotted)
  1. (obsolete) To bolt or lock a door or window.
solo Tweet Definition of solo Like Definition of solo on Facebook
  1. A piece of music for one performer.
  2. A job or performance (e.g., an airplane flight) done by one person alone.
  3. A card game similar to Whist in which each player plays against the others in turn without a partner.
  1. Without a companion or instructor
  2. Of, for, or played as a musical solo.
spar Tweet Definition of spar Like Definition of spar on Facebook
  1. (nautical) A general term any linear object used as a mast, sprit, yard, boom, pole or gaff.
verb (spar, r, ed)
  1. To fight, especially as practice for martial arts or hand-to-hand combat.
spin Tweet Definition of spin Like Definition of spin on Facebook
  1. circular, Circular motion.
  2. (physics) A quantum angular momentum associated with subatomic particles, which also creates a magnetic moment.
  3. A favourable comment or interpretation intended to bias opinion on an otherwise unpleasant situation.
  4. (cricket) rotation, Rotation of the ball as it flies through the air; sideways movement of the ball as it bounces.
  5. A condition of flight where a stalled aircraft is simultaneously pitching, yawing and rolling in a spinning motion.
verb (spins, spinning, spun or span, spun)
  1. To turn around quickly.
  2. To present, describe, or interpret, or to introduce a bias or slant so as to give something a favorable or advantageous appearance.
2006. In every administration there will be spokesmen and public affairs officers who try to spin the news to make the president look good. But this administration is trying to spin scientific data and muzzle scientists toward that end. — The Washington Post Editorial, The Politics of Science, Thursday, February 9, 2006; Page A22
  1. (context, cricket, of a bowler) To make the ball move sideways when it bounces on the pitch.
  2. (context, cricket, of a ball) To move sideways when bouncing.
  1. (cricket) Describing a spin bowler, or his style of bowling.
spinner Tweet Definition of spinner Like Definition of spinner on Facebook
  1. A conical cover at the center of some aircraft propellers.
  2. (Obsolete) Coin thrower in a game of two-up.
  3. (cricket) a spin bowler.
  4. (context, fishing) a type of lure consisting of wire, a rotating blade, a weighted body, and one or more hooks.
spiral Tweet Definition of spiral Like Definition of spiral on Facebook
  1. (geometry) A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point.
  2. (informally) A helix.
spoiler Tweet Definition of spoiler Like Definition of spoiler on Facebook
  1. a document, review or comment that discloses the ending or some key surprise, or twist in a story. Good netiquette dictates that one warn of spoilers before discussing them, so that readers who wish to do so may experience the surprises for themselves.
  2. in aeronautics, a device to reduce lift
  3. in automobiles, a device to reduce lift and increase downforce
  4. In politics or game, gaming: an individual unable to win an election or game for him- or herself, but with the power to determine which player or candidate among two or more others does win.
spread Tweet Definition of spread Like Definition of spread on Facebook
  1. The act of spreading or something that has been spread.
  2. An expanse of land.
  3. A piece of material used as a cover (such as a bedspread).
  4. A large meal, especially one laid out on a table.
  5. Any form of food designed to be spread onto a slice of bread etc.
  6. An item in a newspaper or magazine that occupies more than one column or page.
  7. A numerical difference.
verb (spreads, spreading, spread)
  1. (transitive) To put one"s legs apart.
  2. (transitive) To divide something in a homogeneous way.
  3. (transitive) To scatter.
  4. (transitive) To put butter or jam onto bread.
  5. (transitive) To expand.
Missionaries spread their religion's teachings.
  1. (intransitive) To expand.
The disease had spread into remote villages.
stability Tweet Definition of stability Like Definition of stability on Facebook
noun (stabilities, -)
  1. The condition of being stable.
  2. The tendency to recover from perturbations.
stabilize Tweet Definition of stabilize Like Definition of stabilize on Facebook
verb (stabiliz, ing)
  1. (transitive) To make stable.
    Jody stabilized the table by putting a book under the short leg.
  2. (intransitive) To become stable.
    The country will after the next election ends.
stabilizer Tweet Definition of stabilizer Like Definition of stabilizer on Facebook
  1. any substance added to something in order to stabilize it
  2. a gyroscopically controlled fin or similar device that prevents the excess rolling of a ship in rough seas
  3. an airfoil that stabilizes the flight of an aircraft or missile
  4. (in plural, UK) training wheels on a child's bicycle
stack Tweet Definition of stack Like Definition of stack on Facebook
  1. A large pile of hay, grain, straw, or the like, larger at the bottom than the top, sometimes covered with thatch.
  2. A pile of similar objects, each directly on top of the last.
Please bring me a chair from that stack in the corner.
  1. A pile of poles or wood, indefinite in quantity.
  2. A pile of wood containing 108 cubic feet. (~3 m³)
  3. A smokestack.
  4. (computing) A linear data structure in which the last datum stored is the first retrieved; a LIFO queue.
  5. (computing) A portion of memory in a computer occupied by a data structure, particularly (the stack) that portion of main memory manipulated during machine language procedure call related instructions.
  6. (geology) Coastal landform. A large vertical column of rock in the sea.
  7. (context, library) Compactly spaced bookshelf, bookshelves used to house large collections of books.
  8. (figurative) A large amount of an object.
  9. (military) A pile of rifles or muskets in a cone shape.
  10. (poker) The amount of money a player has on the table.
  11. (architecture) A vertical drain pipe.
  1. To place one or more objects or material in the form of a stack or on an existing stack.
Please stack those chairs in the corner.
  1. (card games) To arrange the cards in a deck in a particular manner.
This is the third hand in a row you've drawn a four-of-a-kind. Someone is stacking the deck!
  1. (poker) To take all the money another player currently has on the table.
I won Jill's last $100 this hand; I stacked her!
stagger Tweet Definition of stagger Like Definition of stagger on Facebook
  1. An unsteady movement of the body in walking or standing, as if one were about to fall; a reeling motion; vertigo; -- often in the plural; as, the stagger of a drunken man.
  2. A disease of horses and other animals, attended by reeling, unsteady gait or sudden falling; as, parasitic staggers; apoplectic or sleepy staggers.
  3. Bewilderment; perplexity.
  1. To move to one side and the other, as if about to fall, in standing or walking; not to stand or walk with steadiness; to sway; to reel or totter.
  2. To cease to stand firm; to begin to give way; to fail.
  3. To begin to doubt and waver in purposes; to become less confident or determined; to hesitate.
  4. To cause to reel or totter.
  5. To cause to doubt and waver; to make to hesitate; to make less steady or confident; to shock.
  6. To arrange (a series of parts) on each side of a median line alternately, as the spokes of a wheel or the rivets of a boiler seam.
  7. To walk in an awkward, drunken fashion
stall Tweet Definition of stall Like Definition of stall on Facebook
  1. (countable) A compartment for a single animal in a stable or cattle shed.
  2. (countable) A small open-fronted shop.
  3. A very small room used for a shower or a toilet.
Rabbit eases from the king-size bed, goes into their bathroom with its rose-colored one-piece Fiberglas tub and shower stall, and urinates into the toilet of a matching rose porcelain. - "Rabbit at Rest", by John Updike
  1. (countable) A seat in a theatre close to and (about) level with the stage.
  2. (aeronautics) loss, Loss of lift due to an airfoil's critical angle of attack being exceeded.
  1. (intransitive) To come to a standstill.
  2. (intransitive) (aeronautics) To exceed the critical angle of attack, resulting in total loss of lift.
stator Tweet Definition of stator Like Definition of stator on Facebook
  1. The stationary part of a motor or other machine.
statoscope Tweet Definition of statoscope Like Definition of statoscope on Facebook
  1. an instrument used for indicating or recording small changes in barometric pressure or in the altitude of an aircraft
Stick Tweet Definition of Stick Like Definition of Stick on Facebook
proper noun Stick®
  1. Chapman Stick® or The Stick®, electric musical instrument devise, devised by Emmett Chapman.
stringer Tweet Definition of stringer Like Definition of stringer on Facebook
  1. Someone who threads something.
  2. Someone who leads someone along.
  3. A horizontal timber that supports upright posts.
  4. A local freelance reporter for a national or regional newspaper.
  5. (surfing) Wooden strip running lengthwise down the centre of a surfboard, for strength.
Line up the 1/2 template with the (or draw a center line) — Stephen Pirsch
  1. (baseball, slang) An 1800s baseball term meaning a hard-hit ball.
  2. (fishing) A cord or chain, sometimes with additional loop, loops, that is threaded through the mouth and gills of caught fish.
Janice pulled the bluegill out of the water and added it to her .
surface Tweet Definition of surface Like Definition of surface on Facebook
  1. The up-side of a flat object such as a table.
  2. The outside hull of a tangible object.
  3. (math) (geometry) The locus of an equation (especially one with exactly two degree of freedom, degrees of freedom) in a more-than-two-dimensional space.
verb (surfaces, surfacing, surfaced) (transitive)
  1. (transitive) To provide something with a surface.
  2. (transitive) To apply a surface to something.
  3. (intransitive) To rise to the surface.
  4. (intransitive) To come out of hiding.
  5. (intransitive) For information or facts to become known.
  6. (intransitive) To work a mine near the surface.
sweep Tweet Definition of sweep Like Definition of sweep on Facebook
  1. The person who steers a dragon boat.
  2. A person who stands at the stern of a surf boat, steering with a steering oar and commanding the crew.
  3. A chimney sweep.
  4. A search (typically for bugs electronic listening devices).
  5. (cricket) A batsman's shot, played from a kneeling position with a swinging horizontal bat.
  6. A lottery, usually on the results of a sporting event, where players win if their randomly chosen team wins.
Jim will win fifty dollars in the office if Japan wins the World Cup.
  1. A flow of water parallel to shore caused by wave action at an ocean beach or at a point or headland.
verb (sweeps, sweeping, swept)
  1. (transitive) To clean (a floor, etc) using a broom or brush.
  2. (intransitive) To move through an (horizontal) arc or similar long stroke.
    • 2005, w:Plato, Plato, Sophist. Translation by Lesley Brown. w:Stephanus pagination, 236d.
    • : has the course of the argument so accustomed you to agreeing that you were swept by it into a ready assent?
      1. (transitive) To search (a place) methodically.
      2. (cricket) To play a sweep shot.
      3. (curling) To brush the ice in front of a moving stone, causing it to travel farther and to curl less.
      4. (transitive) (ergative) To move something in a particular motion, as a broom
sweepback Tweet Definition of sweepback Like Definition of sweepback on Facebook
noun Sweepback
  1. the rearward angle of the leading edge of a wing, or airfoil.
swing Tweet Definition of swing Like Definition of swing on Facebook
  1. The manner in which something is swung.
He worked tirelessly to improve his golf .
Door indicates direction the door opens.
  1. A hanging seat in a children's playground, for acrobats in a circus, or on a porch for relaxing.
  2. A dance style.
  3. (music) The genre of music associated with this dance style.
  4. The amount of change towards or away from something.
  5. Particularly, the increase or decrease in the number of votes in an election for opposition parties compared with votes for the incumbent party.
The polls showed a wide to Labour.
  1. (cricket) sideways movement of the ball as it flies through the air.
  2. The diameter that a lathe can cut.
  3. In a musical theater production, a performer who understudies several roles. See w:understudy, understudy.
verb (swings, swinging, swung)
  1. (defn, English)

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