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Noun: speedbrake  'speed,breyk
  1. (aviation) a control surface on an aircraft used to increase drag (and hence decrease speed)

Type of: aerofoil [Brit], airfoil [N. Amer], control surface, surface

Encyclopedia: Speedbrake

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speed indicator
speed limit
speed of light
speed skate
speed skater
speed skating
speed trap
speed up
speedball
speedboat
speedbrake
speeder
speedily
speediness
speeding
speeding ticket
Speedo
speedo
speedometer
speedpaint
speed-reading